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The given graph represent the variations of Z (compressibility factor (Z) = pV/nRT ) versus p, for three real gases A,B and C. Identify the only incorrect statement

The given graph represent the variations of Z (compressibility factor (Z) = pV/nRT ) versus p, for three real gases A,B and C. Identify the only incorrect statement

Grade:11

1 Answers

Kevin Nash
askIITians Faculty 332 Points
9 years ago
Sol. (b) is incorrect statement because at high pressure slope of the line will change from negative to positive a. For the gas A, a = 0 and its dependence on p is linear at all pressure. b. For the gas B, b = 0 and its dependence on p is linear at all pressure. c. For the gas C, which is typical real gass for which neither a nor b = 0 . By knowing the minima and the point of intersection, with Z = 1, a and b can be calculated. d. At high pressure, the slope is positive for all real gases.

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