What amount of heat has to be transferred to `v = 3.0` moles of carbon dioxide to keep its temperature constant while it expands into vacuum from the volume `V_1 = 5.0 1` to `V_2 = 10 1` ? The gas is assumed to be a Van der Walls gas.

What amount of heat has to be transferred to `v = 3.0` moles of carbon

1.	What amount of heat has to be transferred to `v = 3.0` moles of carbon dioxide to keep its temperature constant while it expands into vacuum from the volume `V_1 = 5.0 1` to `V_2 = 10 1` ? The gas is assumed to be a Van der Walls gas.
Answer» `Q = U_f - U_i + A = U_f - U_i`, (as `A = 0` in free expansion) So at constant temperature. `Q = (-av^2)/(V^2) -(-(av^2)/(V_1)) = av^2 (V_2 - V_1)/(V_1 .V_2)` =`0.33 kJ` from the given data.

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What amount of heat has to be transferred to `v = 3.0` moles of carbon dioxide to keep its temperature constant while it expands into vacuum from the volume `V_1 = 5.0 1` to `V_2 = 10 1` ? The gas is assumed to be a Van der Walls gas.

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