CHM ENG 141 Study Guide - Midterm Guide: Maxwell Relations, Partial Derivative, Structure Of Policy Debate
8 Jan 2019
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1a) (5 points) first write the total differential for enthalpy in terms of t and p. dh. 1 point for finding dh partial derivative from dh equation. From dg = -sdt + vdp, we can find the following maxwell relation: Using the transition from state 1 to 2, the second term on the right-hand side is zero since dt = 0. T is constant at a given temperature (given in problem statement) 1 point for putting in values in equation. Now for the equation of v as a function of p. mol bar. 1 where v is kept in cm3/mol and p is in bar note: equation is only valid for t = 300 k: (5 points) 2 points for final answer: (20 points) Let"s define a state 6 at t = 330 k and p = 1 bar. We can find h1 5 because we have already found the other dh values for the other part of that cycle.
