Question

if the kinetic energy of hydrogen is 151.91 j at pressure of 1 atmosphere then it's volume is​

Answer 1

answer : 1Litre.

it is given that, kinetic energy of hydrogen = 151.91 J at pressure of 1 atmosphere.

we have to find its volume.

according to kinetic theory of gases,

kinetic energy of hydrogen is given by, K.E = 3/2 nRT

from gas equation, PV = nRT

so, K.E = 3/2 PV

now, putting K.E = 151.91 J, P = 1atm = 1.013 × 10^5 N/m²

so, 151.91 J = 3/2 × (1.013 × 10^5 N/m²) × V

or, V = (151.91 × 2)/(3 × 1.013 × 10^5) m³

= 99.97 × 10^-5 m³ ≈ 10^-3 m³

we know, 1 m³ = 1000Litres

= 10^-3 × (1000Litres )

= 1Litres

so, volume of hydrogen is 1Litre.

[note : here it is not clear that kinetic is given of hydrogen atom or hydrogen molecules. in this situation we should use hydrogen atom. or if options are given then you should check which one is preferred. ]

Answer 2

Answer:

the volume is 1litre

Explanation:

volume of hydrogen is 1 litre