The internal energy of a substance U is relat | vedclass

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Question

(A) The internal energy $U$ of a substance is a state function that depends on the temperature of the system. For an ideal gas,the internal energy is

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It increases with an increase in temperature.

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(A) The internal energy $U$ of a substance is a state function that depends on the temperature of the system. For an ideal gas,the internal energy is directly proportional to the absolute temperature $(U \propto T)$. Therefore,as the temperature increases,the kinetic energy of the molecules increases,leading to an increase in the internal energy of the substance. Thus,both options $A$ and $B$ describe the relationship correctly,but in the context of standard multiple-choice questions,$A$ is the most common representation of this dependence.

The internal energy of a substance $U$ is related to temperature $T$ in which of the following ways?

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