How much volume does one mole of a gas occupy at N.T.P
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|
1
|
2121
|
July 18, 2018
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Derive the equation to find efficiency of Carnot engine cycle
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0
|
30031
|
August 22, 2016
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An electric heater supplies heat to a system at a rate of 100 W. If the system performs work at a rate of 75 joules per second. At what rate is the internal energy increasing?
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0
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2256
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August 22, 2016
|
Two cylinders A and B of equal capacity are connected to each other via a stopcock
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1
|
1526
|
August 22, 2016
|
A geyser heats water flowing at the rate of 3 litres per minute from 27°C to 77°C. If the geyser operates on a gas burner, what is the rate of consumption of the fuel if its heating of combustion
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0
|
2342
|
August 22, 2016
|
A refrigerator is to maintain eatables kept inside at 9°C. Calculate the coefficient of performance if the room temperature is 36°C
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0
|
1799
|
August 22, 2016
|
A cylinder with a movable piston contains 3 moles of hydrogen at constant temperature and pressure
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1
|
1981
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August 22, 2016
|
A metallic sphere is heated. Out of its radius, surface area, volume and mass which will undergo the maximum percentage increase?
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0
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800
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August 22, 2016
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What is coefficient of performance of a refrig-erator?
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0
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2322
|
August 22, 2016
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Give an expression for the efficiency of Carnot's engine?
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0
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648
|
August 22, 2016
|
State second law of thermodynamics
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0
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2074
|
August 22, 2016
|
Can we make heat to flow from a body at lower temperature to a body at higher temperature?
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0
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550
|
August 22, 2016
|
State Kirchhoff's law
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0
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1767
|
August 22, 2016
|
What is a perfect black body?
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0
|
982
|
August 22, 2016
|
Is Carnot engine a real engine?
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0
|
622
|
August 22, 2016
|
What is a diathermic metarial?
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0
|
647
|
August 22, 2016
|
What is the S.I. unit of coefficient of expansion?
|
|
0
|
582
|
August 22, 2016
|
What is temperature of a gas?
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0
|
468
|
August 22, 2016
|
What is mean kinetic energy of molecular per unit volume?
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|
0
|
546
|
August 22, 2016
|
List typical observations which are expected at absolute zero
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0
|
517
|
August 22, 2016
|
Is coefficient of performance of a refrigerator a constant quantity?
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0
|
2103
|
August 22, 2016
|
In a Carnot engine, temperature of sink is increased. What will happen to its efficiency?
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0
|
2503
|
August 22, 2016
|
Can mechanical energy be converted continuously and completely into heat ? Is the reverse also possible?
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0
|
931
|
August 22, 2016
|
Can heat be completely converted into work?
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0
|
574
|
August 22, 2016
|
Mention two essential characteristics of an ideal heat engine
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0
|
1751
|
August 22, 2016
|
What is a mechanical equivalent?
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|
0
|
499
|
August 22, 2016
|
Name the forces in a system which make the process taking place in it, irreversible in a nature
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0
|
731
|
August 22, 2016
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Derive an expression for work done in adiabatic expansion
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|
0
|
22589
|
August 22, 2016
|
Derive the equation of adiabatic changes
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|
0
|
8850
|
August 22, 2016
|
Prove that ${{C}_{p}}$ is greater than ${{C}_{v}}$
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|
0
|
554
|
August 22, 2016
|