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Engineering Thermodynamics

Engineering Thermodynamics
The amount of heat required to raise the temperature of __________ water through one degree is called kilojoules.

1 g
10 g
100 g
1000 g

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Engineering Thermodynamics
The value of gas constant (R) in S. I. units is

2.87 J/kgK
287 J/kgK
0.287 J/kgK
28.7 J/kgK

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Engineering Thermodynamics
Superheated vapour behaves

Approximately as a gas
As steam
Exactly as gas
As ordinary vapour

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Engineering Thermodynamics
When the gas is heated at constant pressure, the heat supplied

Both (B) and (C)
Increases the internal energy of the gas
Does some external work during expansion
Increases the temperature of the gas

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Engineering Thermodynamics
An adiabatic wall is one which

Encourages thermal interaction
Prevents thermal interaction
Permits thermal interaction
Discourages thermal interaction

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Engineering Thermodynamics
Which of the following processes are thermodynamically reversible?

Throttling
Isothermal and adiabatic
Free expansion
Constant volume and constant pressure

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