Mechanical Engineering - Thermodynamics

36. 

According to Avogadro's law, the density of any two gases is __________ their molecular masses, if the gases are at the same temperature and pressure.

A. equal to
B. directly proportional to
C. inversely proportional to

Answer: Option B

Explanation:

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37. 

The kinetic energy of molecules of a gas becomes zero at absolute zero temperature.

A. Agree
B. Disagree

Answer: Option A

Explanation:

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38. 

One kg of carbon monoxide requires __________ kg of oxygen to produce 11/7 kg of carbon dioxide gas.

A. All
B. 4/7
C. 11/4
D. 9/7

Answer: Option B

Explanation:

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39. 

The absolute zero temperature is taken as

A. -273°C
B. 273°C
C. 237°F
D. -237°F

Answer: Option A

Explanation:

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40. 

The specific heat of water is

A. 1.817
B. 2512
C. 4.187
D. none of these

Answer: Option C

Explanation:

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