Question

how much should the pressure be increased in order to decrease the volume of a gas by 5percent at constant temperature​

Answer 1

$\huge{\mathcal{\blue{\underline{Answer}}}}$

The volume has to be decreased by 5%, so the final volume of the gas is, V2= V-Vx5%=V-V/20= 19V/20. Let P2 be the final pressure of the gas.

∴ The pressure has to be increased by 0.05 multiple of the initial pressure.