(a)
Interpretation:
Whether the final pressure of the vapor is different from the initial value or not if some liquid remains is to be determined.
Concept introduction:
When a liquid is vaporized it changes into the gaseous phase and when a gas condenses it converts to the liquid phase. The phase changes can be expressed as follows:
Vapor pressure is the pressure exerted by the vapors when the liquid and vapor phase are in the equilibrium with each other.
(b)
Interpretation:
Whether the final pressure of the vapor is different from the initial value or not if all the liquid is first removed is to be determined.
Concept introduction:
When a liquid is vaporized it changes into the gaseous phase and when a gas condenses it converts to the liquid phase. The phase changes can be expressed as follows:
Vapor pressure is the pressure exerted by the vapors when the liquid and vapor phase are in the equilibrium with each other.
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