The mean translational K.E. per unit volume E and the pressure P of a perfect gas are related as
P = $\dfrac{E}{2V}$
P = $\dfrac{2E}{3V}$
P = $\dfrac{3}{2}EV$
P = $\dfrac{3E}{2V}$
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One mole of ideal gas required 207 J heat to rise the temperature by 10 K when heated at constant pressure. If the same gas is heated at constant volume to raise the temperature by the same 10K the heat required is (R = 8/3 J/mole K)