What is the vapor pressure of propane at T = 275 K, according to the shortcut equation?
A. 117 kPa
B. 0.502 MPa
C. 1.67 MPa
D. 2094. MPa
E. None of these.
A. Incorrect. This is value you get if you forget to convert from the reduced pressure.
B. Correct.
C. Incorrect. You used the wrong base logarithm.
D. Incorrect. You made a mistake in your temperature calculation.
E. Incorrect. One is the value returned by the shortcut equation when used for this problem.
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