The internal energy of a monoatomic ideal gas | vedclass

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(B) In an ideal gas,the molecules are considered as point masses with no intermolecular forces of attraction or repulsion. Since there are no intermol

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totally kinetic.

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(B) In an ideal gas,the molecules are considered as point masses with no intermolecular forces of attraction or repulsion. Since there are no intermolecular forces,the potential energy associated with the interaction between molecules is zero. Therefore,the internal energy of an ideal gas consists entirely of the kinetic energy of its molecules due to their random translational motion. For a monoatomic ideal gas,the internal energy $U$ is given by $U = \frac{3}{2} nRT$,which represents the total translational kinetic energy.

The internal energy of a monoatomic ideal gas molecule is

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