50 cal of heat is required to raise the temperature of 1 mole of an ideal gas from 20C to 25C, while the pressure of the gas is kept constant. The amount of heat required to raise the temperature of the same gas through same temperature range at constant volume is (R 2 cal/mol/K) (1) 70 cal (2) 60 cal (3) 40 cal (4) 50 cal

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70 cal

of heat is required to raise the temperature of

2

moles of an ideal gas at constant pressure from

30^{\circ} C

35^{\circ} C

. The amount of heat required to raise the temperature of the same gas through same range of temperature (

30^{\circ} C

35^{\circ} C

) at constant volume is
Given

(γ = 7 / 5)

70 calories of heat are required to raise the temperature of 2 moles of an ideal gas at constant pressure from $30^{\circ} C t o 35^{\circ} C$ . The amount of heat required to raise the temperature of same gas through the same range ( $30^{\circ} C t o 35^{\circ} C$ ) at constant volume (R = 2 cal/mol/K)