A gas is compressed in a cylinder by a movable piston to a volume one-half its original volume. During the process 300 kJ heat left the gas and internal energy remained same. The work done on gas in Nm will be___________________?

A. 300 nm
B. 300,000 nm
C. 30 nm
D. 3000 nm

Entropy change depends on___________________?

A. Heat transfer
B. Mass transfer
C. Change of temperature
D. Thermodynamic state

Energy can neither be created nor destroyed but can be converted from one form to other is inferred from_________________?

A. Zeroth low of thermodynamic
B. First law of thermodynamics
C. Second law to thermodynamics
D. Basic law of thermodynamics

Change in enthalpy in a closed system is equal to heat transferred if the reversible process takes place at constant________________?

A. Pressure
B. Temperature
C. Volume
D. Internal energy

Isochoric process is one in which___________________?

A. Free expansion takes place
B. Very little mechanical work is done by the system
C. No mechanical work is done by the system
D. All parameters remain constant

Change in internal energy in a closed system is equal to heat transferred if the reversible process takes place at constant_______________?

A. Pressure
B. Temperature
C. Volume
D. Internal energy

Total heat of a substance is also known as __________________?

A. Internal energy
B. Entropy
C. Thermal capacity
D. Enthalpy

Addition of heat at constant pressure to a gas results in________________?

A. Raising its temperature
B. Raising its pressure
C. Raising its volume
D. Raising its temperature and doing external work

Measurement of temperature is based on_________________?

A. Thermodynamic properties
B. Zeroth law of thermodynamics
C. First law of thermodynamics
D. Second law of thermodynamics

Carnot cycle efficiency is maximum when______________?

A. Initial temperature is 0°k
B. Final temperature is 0°k
C. Difference between initial and final temperature is 0°k
D. Final temperature is 0°c