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Engineering Thermodynamics

Engineering Thermodynamics
Properties of substances like pressure, temperature and density, in thermodynamic coordinates are

Real functions
Path functions
Point functions
Cyclic functions

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Engineering Thermodynamics
A perfect gas at 27°C is heated at constant pressure till its volume is double. The final temperature is

327°C
54°C
108°C
654°C

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Engineering Thermodynamics
According to which law, all perfect gases change in volume by 1/273th of their original volume at 0°C for every 1°C change in temperature when pressure remains constant

Charles' law
Gay Lussac’s law
Boyle's law
Joule's law

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Engineering Thermodynamics
The heat supplied to the gas at constant volume is (where m = Mass of gas, cv = Specific heat at constant volume, cp = Specific heat at constant pressure, T2 - T1 = Rise in temperature, and R = Gas constant)

mR (T2 - T1)
mcv (T2 - T1)
mcp (T2 - T1)
mcp (T2 + T1)

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Engineering Thermodynamics
The gas constant (R) is equal to the __________ of two specific heats.

Product
Sum
Difference
Ratio

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Engineering Thermodynamics
Change in internal energy in a closed system is equal to heat transferred if the reversible process takes place at constant

Internal energy
Temperature
Volume
Pressure

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MORE MCQ ON Engineering Thermodynamics

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