WorksheetsEntropy and Carnot's Engine
Total questions: 10
Worksheet time: 5mins
Which of the following is not a thermodynamic quantity?
Pressure
Temperature
Charge
Entropy
An isolated system is one that is
not touching any object
contain within adiabatic walls
inside a vessel having perfectly insulating and rigid walls
inside a vessel having perfectly rigid walls
The internal energy of a gas is
the energy due to pressure exerted on the walls of the container
the sum of kinetic and potential energies of all the molecules
(3/2)NKT
equal to rest mass energy of all the molecules
Equation of state of an electrodynamic system is the relationship between
P and T
S and T
U and T
any three thermodynamic variables of the system
An indicator diagram for a system is
Relationship of any three variables of the system
A diagram showing the internal energy of the system
a diagram between any two thermodynamic variables such that each point represents an equilibrium state
a diagram that shows an irreversible change occurring in the system
A thermodynamic process in which the volume of the system remains constant is called
an isobaric process
an isothermal process
an adiabatic process
an isochoric process
in a gaseous system, work done in one cycle of a cyclic process is numerically equal to
The product of P and V
The net change in entropy of the system
the area enclosed by the closed curve representing the P-V diagram
the area enclosed by the P-T curve
In one cycle a Carnot's heat engine takes place 100 calories of heat from a source and rejects 50 cal to the sink. Its efficiency is
100%
50%
25%
15%
Efficiency of Carnot engine
(a)
Typical automobile engine
heating appliance
thermostat
refrigerator
heat engine
