Question

A solid substance has a vapor pressure of 100 mm Hg at the melting point (100 °C).
Assuming an atmospheric pressure of 760 mm Hg, describe the behavior of this solid as the temperature is raised from room temperature to its melting point.

Answer 1

Answer:

The melting point would be 250. That is the answer I think

Explanation:

Answer 2

The solid substance will turn into vapor when the temperature is increased from room temperature into meeting point temperature.

The given parameters;

• Vapor pressure of the solid, $P_{vap}$ = 100 mmHg
• Melting point of the solid, T = 100 °C.
• Atmospheric pressure, $P_{atm}$ = 760 mmHg
• Room temperature, $T_0$ = 20 °C

A substance boils when the atmospheric pressure is equal to the vapor pressure.

Since the vapor pressure of the solid substance occurs at the meeting temperature of the substance, once the temperature of the solid substance is increased to the meeting point temperature, the solid substance will turn into vapor (gas).

Thus, we can conclude that the solid substance will turn into vapor when the temperature is increased from room temperature into meeting point temperature.

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