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What is the boiling point of CCl4, if the pressure on the surface of the liquid is 65kPa?

What is the boiling point of CCl4, if the pressure on the surface of the liquid is-example-1

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For a liquid, its boiling point is reached when its vapor pressure gets equal to the surface pressure.

The surface pressure is 65 kPa, so the vapor pressure has to be equal to this when it get to its boiling point.

Using the graph for CCl₄, we can check the hight for 65 kPa and read the corresponding temperature.

As we can see, for 65kPa, the temperature is a little higher than 60°C:

But it clearly don't get to the middle between 60°C and 80°C, so it its belowe 70°C.

The only alternative that is between 60°C and 10°C is the correct one, alternative D.

What is the boiling point of CCl4, if the pressure on the surface of the liquid is-example-1
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