Let initial pressure =p and initial volume =100 unit. Then, final volume =95 unit final pressure = ? ∵ The relation for an ideal gas is: p1V1=p2V2 p×100=p2×95 p2=
p×100
95
=1.0526p ∴ Increase in pressure =1.0526p−p =1.0526×100( for %)−100 =105.26−100=5.26%