A sample of neon gas is heated from 300 K to 390 K. Calculate the percent increase in its kinetic energy.

Answer : The percent increase in its kinetic energy is, 30 %

Explanation :

Formula used for kinetic energy is:

where,

K.E = kinetic energy

R = gas constant

T = temperature

The expression of kinetic energy at 300 K temperature:

The expression of kinetic energy at 390 K temperature:

Now we have to calculate the change in kinetic energy.

Change in kinetic energy =

Change in kinetic energy =

Change in kinetic energy =

Now we have to calculate the percent increase in its kinetic energy.

Percent increase in kinetic energy =

Percent increase in kinetic energy = 30 %

Thus, the percent increase in its kinetic energy is, 30 %