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One kilogram of a diatomic gas is at a pressure of $8 \times 10^{4} N m^{- 2}$ . The density of the gas is $4 k g m^{- 3}$ . What is the energy of the gas due to its thermal motion?

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Correct option is C

Thermal energy corresponds to internal energyAs per law of equipartition of energy,Energy per mole = fRT2Hence energy of gas = number of molesfRT2=nfRT2=fPV2=58×104Nm−214m32=5×104J

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One kilogram of a diatomic gas is at a pressure of 8×104Nm−2. The density of the gas is 4kgm−3. What is the energy of the gas due to its thermal motion?

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One kilogram of a diatomic gas is at a pressure of $8 \times 10^{4} N m^{- 2}$ . The density of the gas is $4 k g m^{- 3}$ . What is the energy of the gas due to its thermal motion?