Question

question 5 of 10
points possible: 1.00
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to determine the heat of vaporization (δhvap), you must plot your data to get a straight line based on the clausius - clapeyron equation.
what quantities should be plotted on the y - axis and x - axis, respectively?
select one:
pressure (p) vs. temperature (t in °c)
pressure (p) vs. inverse temperature (1/t)
natural log of pressure (ln (p)) vs. temperature (t in k)
natural log of pressure (ln (p)) vs. inverse temperature (1/t in k⁻¹))

Explanation:

Step1: Recall Clausius - Clapeyron equation

The Clausius - Clapeyron equation is $\ln P=-\frac{\Delta H_{vap}}{R}\cdot\frac{1}{T}+C$. This is in the form of a straight - line equation $y = mx + c$, where $y=\ln P$ (natural logarithm of pressure) and $x = \frac{1}{T}$ (inverse of temperature in Kelvin).

Answer:

Natural Log of Pressure ($\ln P$) vs. Inverse Temperature ($1/T$ in $K$)