You solve an equation of state for V and are returned three values. Which of these statements is accurate?
A. The largest V is the physically meaningful one if the pressure is greater than the vapor pressure.
B. If the three values are identical, you are at the triple point.
C. If two values are complex and one is real, you have entered the equation incorrectly.
D. Any time you have more than one “solution” to an equation you have made a mistake.
E. None of these are accurate.
A. Incorrect. Higher pressure favors the liquid phase. If the actual pressure is greater than the vapor pressure, then the system will be liquid and the smallest V is the meaningful one.
B. Incorrect. If the three values are identical, you are at the critical point.
C. Incorrect. If you are above the critical temperature, this is the result you would expect.
D. Incorrect. There can be as many answers (“roots”) to an equation as the highest power exponent of the variable.
E. Correct. All of these statements are wrong.
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