Thermodynamics MCQ with Answers

166) The variables which control the physical properties of a perfect gas are

Answer is:

all of these

Explanation:

The variables which control the physical properties of a perfect gas are
* pressure exerted by the gas
* volume occupied by the gas
* temperature of the gas

167) The heat flows from a cold body to a hot body with the aid of an external source. This statement is given by

Answer is:

Clausis

168) The unit of power in S.I. units is kilowatt.

Answer is:

Right

The unit of power in S.I. units is kilowatt.

169) Otto cycle consists of

Answer is:

two constant volume and two isentropic processes

170) The increase in entropy of a system represents

Answer is:

166) The variables which control the physical properties of a perfect gas are

all of these

167) The heat flows from a cold body to a hot body with the aid of an external source. This statement is given by

Clausis

168) The unit of power in S.I. units is kilowatt.

Right

169) Otto cycle consists of

two constant volume and two isentropic processes

170) The increase in entropy of a system represents

degradation of energy