|
How much volume does one mole of a gas occupy at N.T.P
|
|
1
|
2209
|
July 18, 2018
|
|
Derive the equation to find efficiency of Carnot engine cycle
|
|
0
|
31915
|
August 22, 2016
|
|
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?
|
|
0
|
2397
|
August 22, 2016
|
|
Two cylinders A and B of equal capacity are connected to each other via a stopcock
|
|
1
|
1622
|
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
|
|
0
|
2475
|
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
|
|
0
|
1960
|
August 22, 2016
|
|
A cylinder with a movable piston contains 3 moles of hydrogen at constant temperature and pressure
|
|
1
|
2105
|
August 22, 2016
|
|
A metallic sphere is heated. Out of its radius, surface area, volume and mass which will undergo the maximum percentage increase?
|
|
0
|
880
|
August 22, 2016
|
|
What is coefficient of performance of a refrig-erator?
|
|
0
|
2783
|
August 22, 2016
|
|
Give an expression for the efficiency of Carnot's engine?
|
|
0
|
696
|
August 22, 2016
|
|
State second law of thermodynamics
|
|
0
|
2138
|
August 22, 2016
|
|
Can we make heat to flow from a body at lower temperature to a body at higher temperature?
|
|
0
|
597
|
August 22, 2016
|
|
State Kirchhoff's law
|
|
0
|
1833
|
August 22, 2016
|
|
What is a perfect black body?
|
|
0
|
1052
|
August 22, 2016
|
|
Is Carnot engine a real engine?
|
|
0
|
696
|
August 22, 2016
|
|
What is a diathermic metarial?
|
|
0
|
701
|
August 22, 2016
|
|
What is the S.I. unit of coefficient of expansion?
|
|
0
|
660
|
August 22, 2016
|
|
What is temperature of a gas?
|
|
0
|
524
|
August 22, 2016
|
|
What is mean kinetic energy of molecular per unit volume?
|
|
0
|
600
|
August 22, 2016
|
|
List typical observations which are expected at absolute zero
|
|
0
|
568
|
August 22, 2016
|
|
Is coefficient of performance of a refrigerator a constant quantity?
|
|
0
|
2201
|
August 22, 2016
|
|
In a Carnot engine, temperature of sink is increased. What will happen to its efficiency?
|
|
0
|
2570
|
August 22, 2016
|
|
Can mechanical energy be converted continuously and completely into heat ? Is the reverse also possible?
|
|
0
|
995
|
August 22, 2016
|
|
Can heat be completely converted into work?
|
|
0
|
635
|
August 22, 2016
|
|
Mention two essential characteristics of an ideal heat engine
|
|
0
|
1844
|
August 22, 2016
|
|
What is a mechanical equivalent?
|
|
0
|
550
|
August 22, 2016
|
|
Name the forces in a system which make the process taking place in it, irreversible in a nature
|
|
0
|
801
|
August 22, 2016
|
|
Derive an expression for work done in adiabatic expansion
|
|
0
|
23500
|
August 22, 2016
|
|
Derive the equation of adiabatic changes
|
|
0
|
9457
|
August 22, 2016
|
|
Prove that ${{C}_{p}}$ is greater than ${{C}_{v}}$
|
|
0
|
618
|
August 22, 2016
|