Answer :
pv = nrt
here volume of tank remains constant and number of moles increases
therefore p α n
let initial number of moles be n. the pump pumps 3n into the tank
total no of moles = 4n
p/n = Pₓ/4n
Pₓ = 4 p
here volume of tank remains constant and number of moles increases
therefore p α n
let initial number of moles be n. the pump pumps 3n into the tank
total no of moles = 4n
p/n = Pₓ/4n
Pₓ = 4 p