Question

Thermodynamics process in which volume remains constant is

Answer 1

Answer:

Isometric process

Explanation:

In an isometric process the measurements of the system remains constant. Hence it is a constant volume process.

According to the first law of thermodynamics,

Q = ΔU + W

When V= constant

ΔV = 0

W = 0

∴ W = 0

Q = ΔU  + 0

But there are two possibilities ,

+Q = + ΔU

This is an isometric heat supply.There is no change in the volume and hence there is no work done by the system. Heat must be supplied to the system by an external source. ∴ internal energy and temperature of the system increases.

-Q = - ΔU

This is and isometric heat emission . There is no change in the volume and hence there is no work done by the system. Heat must be emitted out of the system. ∴ internal energy and temperature of the system decreases,