Question

A gas a t 76 cm of mercury occupies a volume of 50cc at constant temperature.If the pressure of gas the gas changes to 80 cm of mercury find the volume occupied by the gas at constant temperature

Answer 1

Answer:

I think it is 47.5 cc

Explanation:

use P1V1= P2V2

Answer 2

Answer:

When the pressure of the gas is changed to 80 cm of mercury then the volume occupied by the gas is 47.5cc.

Explanation:

Since temperature is constant, it is an isothermal process.

For isothermal process,

P₁V₁=P₂V₂

Given P₁=76cm of mercury

P₂=80cm of mercury

V₁=50cc(cubic centimeter)

V₂=?

To find V₂ we apply the above equation,

P₁V₁=P₂V₂

76×50=80×V₂

V₂=47.5cc

Hence, Volume occupied by the gas when the pressure of the gas is changed to 80 cm of mercury is 47.5cc.