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Which of the following will result from increasing the temperature of a gas?A.The molecules will slow down.B.The number of gas molecules will increase.C.The volume of the gas will increase.D.The molecules will be forced into a smaller space together.SUBMITarrow_backPREVIOUS

Question

Which of the following will result from increasing the temperature of a gas?A.The molecules will slow down.B.The number of gas molecules will increase.C.The volume of the gas will increase.D.The molecules will be forced into a smaller space together.SUBMITarrow_backPREVIOUS

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Solution

C. The volume of the gas will increase.

Here's why:

The behavior of gases can be explained by the kinetic molecular theory. According to this theory, the temperature of a gas is directly proportional to the average kinetic energy of its molecules. Kinetic energy is the energy of motion, so when the temperature increases, the average speed of the gas molecules also increases.

As the molecules move faster, they collide with each other and the walls of their container more frequently and with more force. This increased pressure can cause the volume of the gas to increase, assuming the gas is in a flexible container that can expand.

So, increasing the temperature of a gas will generally cause the volume of the gas to increase, not slow down the molecules (A), increase the number of molecules (B), or force the molecules into a smaller space (D).

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