Quiz: 2nd Law Thermodynamics And Entropy

10 Questions | By Gboulton | Last updated: Oct 18, 2022 | Total Attempts: 1092

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Quiz: 2nd Law Thermodynamics And Entropy - Quiz

The study of the relationships between heat, work, temperature, and energy is known as thermodynamics. The quiz on 2nd law of thermodynamics and entropy is designed to test your knowledge of the subject. The quiz contains questions that will help you solidify your conceptual understanding. Take the quiz and see how well you know heat energy and its conversion into mechanical energy. If you like the quiz, do share it with your friends and family. All the best!

Questions and Answers

1.

How is it possible that heat can spontaneously go from a cold object to a hot object?
- A.
  
  By having one way super conductive material between them
- B.
  
  Work can be done by the system to make this happen
- C.
  
  Work can be done to the system to make this happen
- D.
  
  Cold objects can never give thermal energy to hot objects
2.

What is Entropy a measurement of?
- A.
  
  Energy of a system
- B.
  
  Change in energy in a chemical reaction
- C.
  
  Temperature
- D.
  
  Average particular energy in a system
- E.
  
  Disorder in a system
3.

What is true about entropy
- A.
  
  If it increases in one place, it MUST decrease elsewhere
- B.
  
  If it decreases in one place, it MUST increase elsewhere
- C.
  
  It must decrease in the universe
- D.
  
  It must stay constant in the universe
4.

According to second law of thermodynamics cycle efficiency of thermodynamics must be
- A.
  
  Less than unity
- B.
  
  Greater than unity
- C.
  
  Zero
- D.
  
  None of the above
5.

External mechanical Irreversibility is shown by which process?
- A.
  
  Adiabatic dissipation of work
- B.
  
  Isothermal dissipation of work
- C.
  
  Both of the above
- D.
  
  None of the above
6.

Chemical dissociation is always?
- A.
  
  Exothermic
- B.
  
  Endothermic
- C.
  
  Reversible
- D.
  
  Endothermic and reversible
7.

The entropy of water at zero degree celsius is?
- A.
  
  0
- B.
  
  5
- C.
  
  4
- D.
  
  2
8.

The largest unit of energy is?
- A.
  
  Calorie
- B.
  
  Joule
- C.
  
  Volt
- D.
  
  Watt
9.

According to Kirchhoff's law, the factor affecting the heat of reaction is?
- A.
  
  Temperature
- B.
  
  Pressure
- C.
  
  Mass
- D.
  
  Volume
10.

In a heat engine, what is the relationship between Qh, Qc and W
- A.
  
  W = Qh + Qc
- B.
  
  W = Qc - Qh
- C.
  
  W = Qh - Qc
- D.
  
  Q + Qh, + Qc = 0