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NVAEasyJEE Main 2026 · 21 January, Shift 1First Law & Internal Energy

Physics Question from JEE Main 2026 · 21 January, Shift 1

1010 mole of oxygen is heated at constant volume from 30 ∘C30 \, ^{\circ}\text{C} to 40 ∘C40 \, ^{\circ}\text{C}. The change in the internal energy of the gas is _____ cal.

(The molecular specific heat of oxygen at constant pressure, Cp=7 cal/mol ∘CC_p = 7 \, \text{cal/mol} \, ^{\circ}\text{C} and R=2 cal/mol ∘CR = 2 \, \text{cal/mol} \, ^{\circ}\text{C}.)

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