if a certain quantity of gas has volume of 30 cubic centimetre at a presure of 1 x 10^5 pa, what is its volume when the pressure is (a) 2 x10^5 pa and (b) 5 x 10^5 pa

Question

explaining how to go to the final answer and showing all the steps

Answer 1

The temperature is presumably fixed, so we use Boyle's Law relating pressure and volume.

(a) The product of PV is constant so 30*10^5=V*2*10^5, 2V=30 so V=15cc. The pressure is doubled so the volume is halved.

(b) The pressure is multiplied by 5 so the volume is reduced by 5 to 30/5=6cc.