THERMOCHEMISTRY AND THERMODYNAMIC
PRINCIPLES FOR CHEMICAL ENGINEERING
1. What is thermochemistry?
Answer The study of the relationships between chemical reactions and energy changes.
2. Define thermodynamics.
Answer The scientific study of the interconversion of heat and other kinds of energy.
3. What is energy in the context of chemistry?
Answer The ability to do work and heat.
4. What are the two main classifications of energy?
Answer Potential energy and kinetic energy.
5. What does the law of conservation of energy state?
Answer The total quantity of energy in the
universe is assumed constant.
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, 6. What is the unit of energy represented by joules?
Answer 1 J = 1 kg m²/s² = 1 N m.
7. How many joules are in a calorie?
Answer 1 cal = 4.184 J.
8. What is the definition of heat?
Answer The transfer of thermal energy between two bodies at ditterent
temperatures.
9. What is a system in thermodynamics?
Answer Part of the universe on which attention is focused.
10. What are surroundings in thermodynamics?
Answer The rest of the universe outside the system.
11. What is an endothermic process?
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PRINCIPLES FOR CHEMICAL ENGINEERING
1. What is thermochemistry?
Answer The study of the relationships between chemical reactions and energy changes.
2. Define thermodynamics.
Answer The scientific study of the interconversion of heat and other kinds of energy.
3. What is energy in the context of chemistry?
Answer The ability to do work and heat.
4. What are the two main classifications of energy?
Answer Potential energy and kinetic energy.
5. What does the law of conservation of energy state?
Answer The total quantity of energy in the
universe is assumed constant.
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12
, 6. What is the unit of energy represented by joules?
Answer 1 J = 1 kg m²/s² = 1 N m.
7. How many joules are in a calorie?
Answer 1 cal = 4.184 J.
8. What is the definition of heat?
Answer The transfer of thermal energy between two bodies at ditterent
temperatures.
9. What is a system in thermodynamics?
Answer Part of the universe on which attention is focused.
10. What are surroundings in thermodynamics?
Answer The rest of the universe outside the system.
11. What is an endothermic process?
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