The van der Waals equation of state is When the temperature of a given gas is equal to its critical
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The van der Waals equation of state is
When the temperature of a given gas is equal to its critical temperature, the gas has a state at which the pressure as a function of V at constant T and n exhibits an inflection point at which dP/dV = 0 and d2P/dV2 = 0. This inflection point corresponds to the critical point of the gas. Write P as a function of T, V, and n and write expressions for dP/dV and d2P/dV2, treating T and n as constants. Set these two expressions equal to zero and solve the simultaneous equations to find an expression for the pressure at the critical point.
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Chapter #
6
Section: Problem
Problem: 35
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Question Posted: December 28, 2018 07:57:34