Mechanical Engineering - Thermodynamics

31.
One kg of sulphur requires 1 kg of oxygen for complete combustion and produces 2 kg of sulphur dioxide.
True
False
Answer: Option
Explanation:
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32.
The change of entropy, when heat is absorbed by the gas, is
positive
negative
positive or negative
Answer: Option
Explanation:
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33.
A machine which violates the first law of thermodynamics is known as perpetual motion machine of the second kind.
Correct
Incorrect
Answer: Option
Explanation:
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34.
Both the Ericsson and Joule's cycle have two constant pressure processes.
True
False
Answer: Option
Explanation:
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35.
The general law for the expansion or compression of gases, is
pv = C
pv = m R T
pvn = C
pvγ = C
Answer: Option
Explanation:
No answer description is available. Let's discuss.