Question

If a given mass of gas occupies a volume of 10cc at 1 atmospheric pressure and temperature 100°C, what will be its volume at 4 atmospheric pressure, the temperature being the same?

(a) 100cc

(b) 400cc

(c) 104cc

(d) 2.5cc

I got this question in my homework.

My doubt stems from Ideal Gases in section Kinetic Theory of Gases of Engineering Physics I

Answer 1

Right option is (d) 2.5cc

To explain: From Boyle’s law,

P1 V1=P2 V2

1×10=4×V2

V2=10/4=2.5cc.