A sample of water in equilibrium with its vapor in a closed 3-L container has a vapor pressure of 23.8 torr at 25°C. The container's volume is increased to 7 L at constant temperature and the liquid/vapor equilibrium is reestablished. What is the vapor pressure?

The vapor pressure of this liquid in a closed container remains the same and as such would be equal to 23.8 torr.

Given the following data:

To determine the final vapor pressure of a sample of water in equilibrium with its vapor:

What is vapor pressure?

Vapor pressure can be defined as the pressure exerted by a vapor in thermodynamic equilibrium with a liquid or solid that is placed in a closed container at a specific temperature.

On a related note, the vapor pressure of a liquid is the pressure exerted by a vapor when its liquid in a closed container evaporates above the liquid sample.

At a constant temperature, the vapor pressure of a liquid in a closed container would always remain the same provided that vapor equilibrium is reached in the container having a new volume.

In this context, the vapor pressure of this liquid in a closed container remains the same and as such would be equal to 23.8 torr.

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23.8 torr

Explanation:

Vapor pressure of a liquid is simply the pressure of the vapor that arises when the liquid evaporates in a closed container above the liquid sample.

From the question given above, the vapor pressure is 23.8 torr at 25°C. Since the temperature is constant, the vapor will remain the same when equilibrium is reached in the new container as vapor pressure depends on the temperature of the liquid.

the answer would be a

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.