Question

An ideal gas is heated from 27°C to 627°C at constant pressure. If initial volume was 4m^3, then the final volume of the gas will be?

(a) 2m^3

(b) 4m^3

(c) 6m^3

(d) 12m^3

I have been asked this question in exam.

The query is from Ideal Gases in section Kinetic Theory of Gases of Engineering Physics I

Answer 1

The correct choice is (d) 12m^3

The explanation: Using Charle’s law,

V1/T1 = V2/T2

V2=T2/T1 ×V1=((273+627))/((273+27))×4=900/300×4=12m^3.