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Physics Class 11 - Chapter 11
Heat and ThermodynamicsTest - 4
1.
Average translational kinetic energy per molecule of an ideal gas is given by?
a) 3N
o
aT/2R
b) 3RT/2N
o
a
c) 3N
o
a/2RT
d) 2N
o
aT/3
2.
Which one is state function?
a) Volume
b) Heat supply
c) Internal energy
d) Pressure
3.
The purpose of flywheel in the engine is?
a) To smooth out the engine variation
b) To start engine
c) All of these
d) To add more weight to engine to work stable
4.
In which process entropy remains constant?
a) Isochoric
b) Adiabatic
c) Isothermal
d) Isobaric
5.
The work done in the isochoric process is?
a) Zero
b) Depends on condition
c) Constant variable
6.
The performance of a refrigerator is described by?
a) Both of these
b) None of these
c) Coefficient of performance
d) Efficiency
7.
The value of gamma for diatomic gas is?
a) 1.4
b) 1.67
c) None of these
d) 1.3
8.
Boltzmann’s content in term of universal gas constant R and Avogadro’s number is given as?
a) K=N
o
a/R
b) K=R/N
o
a
c) K=RN
o
a
d) K=N
o
aR
9.
Adiabatic process is also known as?
a) Isentropic process
b) Heating process
c) All of these
d) Heat exchange process
10.
In which process all the heat supply is converted into work done?
a) Isentropic
b) Isothermal
c) Isochoric
d) Isobaric
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