2g of hydrogen is sealed in a vessel of volume 0.02 m³ and is maintained at 300K. Calculate the pressure in the vessel.

We know ideal gas equation

PV=nRT

Where V= volume of gas

R=gas constant

T=temperature

n=number of moles of gas

P=pressure of gas.

Given

Volume V=0.02 m³

Temperature T=300K

Mass of hydrogen gas = 2g

Number of moles n =

Molar mass of hydrogen=2amu

mol

From ideal gas equation, we can write

Pa

Pressure in the vessel is Pa.