Exercise: Thermodynamics

Questions for: Thermodynamics

The absolute pressure of a given mass of a perfect gas varies inversely as its volume, when the temperature remains constant. This statement is known as Boyle's law.
A:
Yes
B:
No
C:
D:
Answer: A
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The heating of gas at constant volume is governed by
A:
Boyle's law
B:
Charles' law
C:
Gay-Lussac law
D:
Avogadro's law
Answer: C
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The temperature at which the volume of a gas becomes zero is called
A:
absolute scale of temperature
B:
absolute zero temperature
C:
absolute temperature
D:
none of these
Answer: B
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Which of the following is the correct statement?
A:
For a given compression ratio, both Otto and Diesel cycles have the same efficiency.
B:
For a given compression ratio, Otto cycle is more efficient than Diesel cycle.
C:
For a given compression ratio, Diesel cycle is more efficient than Otto cycle.
D:
The efficiency of Otto or Diessel cycle has nothing to do with compressioin ratio.
Answer: B
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The absolute zero pressure will be
A:
when molecular momentum of the system becomes zero
B:
at sea level
C:
at the temperature of - 273 K
D:
at the centre of the earth
Answer: A
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