Question

A sample of gas occupies 100 litres at 1 atm pressure and at 0 degree celcius . If the volume of gas is to be reduced to 5 litres at the same temperature , what additional pressure must be applied?​

Answer 1

The answer is given in image.

Answer 2

here is your answer.

by :- PV = nRT

first we have to find the number of moles at initial condition=

1×100= n(0.082)273

n = 4.467moles.

now, if we want to decrease the volume by 5 litres then:-

p(95) = 4.467×0.082×273(k)

p = 1.052 ATM

for additional pressure:-

p-P = 1.052-1.000

external pressure:- 0.052 ATM.

hope it helps ☺