Thermal changes accompanying physical and chemical changes - Mecca - Private lessons

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Thermal changes accompanying physical and chemical changes

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Thermal changes accompanying physical and chemical changes
Thermal changes accompanying physical changes

- melting temperature
It is the temperature change when one mole of solute is dissolved in a given amount of solvent
(The amount of heat energy absorbed or released when one mole of solute is dissolved in a given amount of solvent).
During the dissolution process: two processes occur:
A- Dissociation: the breaking of bonds (endothermic reaction)

Sodium and chloride ions dissociate from the crystal lattice as a result of the ionic bond breaking.
The energy absorbed to break the bond is called the heat of the crystal lattice (bond energy).
- Crystal lattice temperature: It is the energy needed to break the bond between ions in the crystal lattice.

B- Hydration: The dissociated ions bind with water molecules to form hydration ions (exothermic process).

Rehydration temperature:

It is the amount of heat released when hydrating ions bind to water molecules.
If the crystal lattice temperature > heat of hydration

Dilution temperature:
It is the heat change per mole of solute when diluted from a concentrated solution to a dilute solution.
(It is the heat change of one mole of solute when diluted in a large amount of water (about 1000 moles of solvent)).

Sedimentation temperature:
The amount of heat released when one mole of an insoluble substance is completely precipitated.

- heat of combustion
It is the amount of heat released when one mole of a substance is completely burned in an abundance of oxygen. (The reaction is always exothermic).

Formation temperature:
It is the amount of heat released or absorbed when one mole of a compound is formed from its elemental elements so that the elements are in their standard state. (at 25 °C, a pressure of 76 x g).

Note:
Heat of formation of the elements = zero

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Around Mecca, Saudi Arabia

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Summary:
My name is Ayesha. I am a visionary professional yet friendly in teaching a wide range of ages from 1 year old, to adults. I have taught students from all over the world with various interests and reasons to learn English and other subjects like Science, Social studies, primary Math, International Relations, Political Science, Islamiah, Chemistry and Biology. As a teacher, I strive to be patient, clear and empower my students to speak English confidently and fluently. I have worked as a teacher, a central office administrator, coordinator, and an online tutor. My unforgettable moment of achievement was receiving the best teacher of the month award.
Academic credentials:
I hold a degree in Master of English, Bachelor of Science subjects included Chemistry, zoology, Botany and English. I have got another degree that is Bachelor of Education.

Highlights:
I love teaching, and I am committed to the individual's learning development, as well as the development of their personalities and fine motor skills.
I have a good understanding of all teaching methods and learning styles.
Able to convey material to students in an easy-to-understand manner.
Assists students with homework questions and test preparation strategies.
Excellent interpersonal and assessment skills.
I really like to tailor my teaching approach to the student’s needs.
I identify the needs of learners and if necessary adapt course content and deliver style to meet their needs.
Assist with homework and other class assignments.
Develop academic strategies to improve student self-sufficiency.
Create lesson plans, review worksheets, and practice tests to prepare students for weekly tests.
Assist students in acquiring better understanding of targeted weak areas within a subject or a subject as a whole.
Develop action plans based on students' and educators' academic goals
Communicate with parents and teachers to update them on students' progress.
Individualizes tutoring for students according to content tutoring needs assessments.
Toast the best class with me !

Learn with an explanation, then apply what we have learned, and then we lay the foundations and strategy to reach the best results, God willing
God willing, we learn the phenomena of science in unconventional ways, and we allocate interactive classes to conduct practical experiments, if possible.
The role of the teacher is to take into account the individual differences and the skills that each student possesses

Secondary school chemistry and physics teacher
The university stage is the preparatory year
Mathematics and science at the middle and primary levels
More than 13 years of experience in the field of education
Experience with Saudi curricula
Delivering lessons in a sequential manner
Student understanding
God willing, excellence will be guaranteed for the student

Private tutor for mathematics, physics, chemistry and science
For all stages
Primary, middle and secondary as well
Aptitude testing courses for secondary school
Teaching mathematics and mechanics to students in technical colleges and engineering colleges
Teaching and monitoring all primary and intermediate school subjects

Education has become a necessity, especially teaching basic subjects such as mathematics, science, and English, subjects that are not difficult to learn or understand. With a little understanding and focus, you will find yourself becoming well acquainted with them, so you must learn and understand them in order to succeed in your professional and academic life.

Private teacher of mathematics, physics and chemistry available in Al-Jamoum, Mecca and Jeddah for school and university students. Explaining for middle school, high school and university students, and also solving all homework. Explaining can also be done online. More than twenty years of experience in teaching school and university students.

Teacher Rahma
Distinguished Private Tutor
International
Why do you choose teacher Rahma?
3 years experience in teaching
Simplified and professional explanation: She puts her academic experience at the service of simplifying the study materials to suit the level of each student, and presenting the concepts in an interesting and smooth manner.
Commitment to Success: Focuses on achieving tangible results for its students, ensuring their academic excellence and developing their skills.
An inspiring educational experience that makes every class an enjoyable and stimulating experience that develops a passion for learning and opens new horizons of knowledge.
With teacher Rahma, confident learning and steady steps towards excellence
Primary and secondary stages

A simplified explanation of the microbiology and immunology course for science colleges for students of medicine, pharmacy, dentistry, science and nursing, which is the science of microbiology and immunology.
I have experience in biology for middle and high school students in Arabic or English
I have experience and skill to deliver information and lessons in an easy way.
More than one student can attend.

Basic English language and advanced levels
Basic Physics and Advanced Levels - English
Basic and Advanced Mathematics - English
Basic Biology and Advanced Levels - English
I teach All The above mention subject in english for all grades in an easy and fluent language.I explain in english as well as in arabic.

Summary:
My name is Ayesha. I am a visionary professional yet friendly in teaching a wide range of ages from 1 year old, to adults. I have taught students from all over the world with various interests and reasons to learn English and other subjects like Science, Social studies, primary Math, International Relations, Political Science, Islamiah, Chemistry and Biology. As a teacher, I strive to be patient, clear and empower my students to speak English confidently and fluently. I have worked as a teacher, a central office administrator, coordinator, and an online tutor. My unforgettable moment of achievement was receiving the best teacher of the month award.
Academic credentials:
I hold a degree in Master of English, Bachelor of Science subjects included Chemistry, zoology, Botany and English. I have got another degree that is Bachelor of Education.

Highlights:
I love teaching, and I am committed to the individual's learning development, as well as the development of their personalities and fine motor skills.
I have a good understanding of all teaching methods and learning styles.
Able to convey material to students in an easy-to-understand manner.
Assists students with homework questions and test preparation strategies.
Excellent interpersonal and assessment skills.
I really like to tailor my teaching approach to the student’s needs.
I identify the needs of learners and if necessary adapt course content and deliver style to meet their needs.
Assist with homework and other class assignments.
Develop academic strategies to improve student self-sufficiency.
Create lesson plans, review worksheets, and practice tests to prepare students for weekly tests.
Assist students in acquiring better understanding of targeted weak areas within a subject or a subject as a whole.
Develop action plans based on students' and educators' academic goals
Communicate with parents and teachers to update them on students' progress.
Individualizes tutoring for students according to content tutoring needs assessments.
Toast the best class with me !

Learn with an explanation, then apply what we have learned, and then we lay the foundations and strategy to reach the best results, God willing
God willing, we learn the phenomena of science in unconventional ways, and we allocate interactive classes to conduct practical experiments, if possible.
The role of the teacher is to take into account the individual differences and the skills that each student possesses

Secondary school chemistry and physics teacher
The university stage is the preparatory year
Mathematics and science at the middle and primary levels
More than 13 years of experience in the field of education
Experience with Saudi curricula
Delivering lessons in a sequential manner
Student understanding
God willing, excellence will be guaranteed for the student

Private tutor for mathematics, physics, chemistry and science
For all stages
Primary, middle and secondary as well
Aptitude testing courses for secondary school
Teaching mathematics and mechanics to students in technical colleges and engineering colleges
Teaching and monitoring all primary and intermediate school subjects

Education has become a necessity, especially teaching basic subjects such as mathematics, science, and English, subjects that are not difficult to learn or understand. With a little understanding and focus, you will find yourself becoming well acquainted with them, so you must learn and understand them in order to succeed in your professional and academic life.

Private teacher of mathematics, physics and chemistry available in Al-Jamoum, Mecca and Jeddah for school and university students. Explaining for middle school, high school and university students, and also solving all homework. Explaining can also be done online. More than twenty years of experience in teaching school and university students.

Teacher Rahma
Distinguished Private Tutor
International
Why do you choose teacher Rahma?
3 years experience in teaching
Simplified and professional explanation: She puts her academic experience at the service of simplifying the study materials to suit the level of each student, and presenting the concepts in an interesting and smooth manner.
Commitment to Success: Focuses on achieving tangible results for its students, ensuring their academic excellence and developing their skills.
An inspiring educational experience that makes every class an enjoyable and stimulating experience that develops a passion for learning and opens new horizons of knowledge.
With teacher Rahma, confident learning and steady steps towards excellence
Primary and secondary stages

A simplified explanation of the microbiology and immunology course for science colleges for students of medicine, pharmacy, dentistry, science and nursing, which is the science of microbiology and immunology.
I have experience in biology for middle and high school students in Arabic or English
I have experience and skill to deliver information and lessons in an easy way.
More than one student can attend.

Basic English language and advanced levels
Basic Physics and Advanced Levels - English
Basic and Advanced Mathematics - English
Basic Biology and Advanced Levels - English
I teach All The above mention subject in english for all grades in an easy and fluent language.I explain in english as well as in arabic.

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