Explanation:

According to Boyle's law, “at a constant temperature, the volume of a gas varies inversely with the pressure exerted.”i.e. The volume of a gas is inversely proportional to pressure keeping the temperature the same”.

• It means if you increase one entity, another will directly decrease. And if you are applying more pressure, the volume of the gas will decrease and if you are removing pressure, gas molecules will expand.

• Hence, when the gas is compressed, its molecules come closer and internal energy of gas is increased and the number of collisions will also increase.

• As the gas is compressed, the work done on it shows up as increased internal energy, which must be transferred to the surroundings to keep the temperature constant.

• The volume of gas increases when temperature increases and hence the molecules of gas will have more kinetic energy and the molecules will strike the container with more force.

Hence option 2nd is correct.