Question

Two cylinders contain the same ideal gas and have the same volume. If the gas molecules in cylinder B have twice the average kinetic energy as those in cylinder A how does the internal energy, U, of cylinder B compare to that of cylinder A

Answer 1

Hence, internal energy in cylinder B is twice than that in A.

It is given that two cylinders contain the same ideal gas and have the same volume. If the gas molecules in cylinder B have twice the average kinetic energy as those in cylinder, we need to compare internal energy.

As kinetic energy is directly proportional to temperature, internal energy is also proportional to temperature.

We can say that more the average kinetic energy, more is the internal energy.

Hence, internal energy in cylinder B is twice than that in A.

The ratio in A:B is 1:2.

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