Discussion
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- Question
The state of a substance whose evaporation from its liquid state is partial, is known as steam.
Options- A. Agree
- B. Disagree
- Correct Answer
- Disagree
- 1. The ratio of molar specific heats for monoatomic gas is
Options- A. 1
- B. 1.4
- C. 1.67
- D. 1.87 Discuss
- 2. The state of a substance whose evaporation from its liquid state is complete, is known as
Options- A. vapour
- B. perfect gas
- C. air
- D. steam Discuss
- 3. When the expansion or compression takes place according to the law pvn = C, the process is known as
Options- A. isothermal process
- B. adiabatic process
- C. hyperbolic process
- D. polytropic process Discuss
- 4. The free expansion process is a constant enthalpy process.
Options- A. Correct
- B. Incorrect Discuss
- 5. A closed system is one in which heat and work crosses the boundary of the system but the mass of the working substance does not crosses the boundary of the system.
Options- A. Yes
- B. No Discuss
- 6. The main cause for the irreversibility is
Options- A. mechanical and fluid friction
- B. unrestricted expansion
- C. heat transfer with a finite temperature difference
- D. all of the above Discuss
- 7. According to kinetic theory of gases, the kinetic energy of translation of a molecule is proportional to
Options- A. T
- B. T
- C. 1/T
- D. 1/T Discuss
- 8. In an irreversible process, there is a
Options- A. loss of heat
- B. no loss of heat
- C. gain of heat
- D. no gain of heat Discuss
- 9. When a gas is heated at constant volume
Options- A. its temperature will increase
- B. its pressure will increase
- C. both temperature and pressure will increase
- D. neither temperature nor pressure will increase Discuss
- 10. The efficiency of Ericsson cycle is __________ Carnot cycle.
Options- A. greater than
- B. less than
- C. equal to Discuss
Thermodynamics problems
Search Results
Correct Answer: 1.67
Correct Answer: perfect gas
Correct Answer: polytropic process
Correct Answer: Correct
Correct Answer: Yes
Correct Answer: all of the above
Correct Answer: T
Correct Answer: loss of heat
Correct Answer: both temperature and pressure will increase
Correct Answer: equal to
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