1.

A cylinder of capacity 20 L is filled with H_(2) gas. The total average kinetic energy of translatory motion of its molecules is 1.5xx10^(5)J. The pressure of hydrogen in the cylinder is

Answer»

`2XX10^(6)N//m^(2)`
`3xx10^(6)N//m^(2)`
`4xx10^(6)N//m^(2)`
`5XX10^(6)N//m^(2)`

Solution :Kinetic ENERGY `E=1.5xx10^(5)J`,
Volume, `V=20L=20xx10^(-3)m^(3)`
Pressure `=(2)/(3)(E)/(V)=(2)/(3)((1.5xx10^(5))/(20xx10^(-3)))=5xx10^(6)N//m^(2)`


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