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When a sample of ideal gas is changed from an initial state to a final state, various curves can be plotted for the process like P-V curve, V-T curve,P-T curve etc. For example, P-V curve for a fixed amount of an ideal gas at constant temperature is a rectangular hyperbola, V-T curve for a fixed amount of an ideal gas at constant volume is again a straight line. However, the shapes may vary if the constant parameters are also changed. Now, answer the following questions : The figure shows the effect of pressure on the compressibility factor, Z of a gas : A. The curve AE can be explained by PV=RTB. The curve AF and CD can be explained by PV=RT+PbC. The curve AB can be explained by PV=RT-`a/V`D. All the three curves AF,AE and AD shows the real behaviour |
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Answer» Correct Answer - D (A)For AE, Z = constant `implies PV=RT` (B)At higher pressure PV=RT+Pb ( C)At lower pressure `PV=RT-a/V` |
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