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AE & JE ME Quiz: Thermodynamics Boster Quiz-3
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Question 1
A gas having a negative joule-Thompson effect (
<0), when throttled will
<0), when throttled will Question 2
The pressure ‘p’ of an ideal gas and its mean kinetic energy E per unit volume are related by the relation
Question 3
A 10 Kg soild at 100 °C with specific heat 0.8 kj/kgk is immersed in 40Kgof 20 °C liquid with a specific heat of 4.0 KJ/Kg °C. Estimate the temperature after a long time if the container is insulated (Specific heat of water=4.18KJ/Kg).
Question 4
An air expands in a piston cylinder arrangement according to PV1.25 = constant. The initial Pressure 10 bar & Temperature 430 K to final temperature 310 K. Calculate the work done ( in kJ/ kg ) of air
Question 5
Air expands in a closed system from an initial Pressure P1 & volume V1 to final volume V2 = 4V1. The work done by the air will be maximum for which Process?
Question 6
When water at 0 °C is heated, its specific volume under standard atmosphere
Question 7
A solar energy based heat engine which receives 80KJ of heat at 100 deg C and rejects 70KJ of heat to the ambient at 30 deg C is to be designed. The thermal efficiency of the heat engine is
Question 8
Air with initial condition of p1, v1 expands to final condition of p1/2, 3v1. The process is
Question 9
A gas is so expanded in a cylinder that its temperature remains constant. The resulting variation of pressure vs. volume is:
Question 10
For an ideal gas, the value of 
is ____________.
is ____________.- 131 attempts
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