What is the internal energy of 50 moles of neon gas (molecular mass = 20 u)at 20.0°C? (R = 8.31 J/mol⋅K)

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Quizplus · Accepted Answer

The internal energy of an ideal gas is given by the formula U = (3/2)nRT, where n is the number of moles, R is the gas constant, and T is the temperature in Kelvin. For 50 moles of neon gas at 20.0°C (which is 293.15K), U = (3/2)(50 moles)(8.31 J/mol⋅K)(293.15K) = 1.8E+5 J. The size of the container does not affect the internal energy of an ideal gas.

What Is the Internal Energy of 50 Moles of Neon