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Chapter 14: Problem 7

What is the vapor pressure of water at \(100^{\circ} \mathrm{C} ?\) How do you know?

Short Answer

Expert verified
The vapor pressure of water at \(100^{\circ} \mathrm{C}\) is 760 Torr or 101.3 kPa. We know this because water boils at 100掳C, and at this temperature, its vapor pressure equals the atmospheric pressure, which is the given value.

Step by step solution

01

Find the vapor pressure of water at the given temperature from the table.

Refer to the vapor pressure temperature table for water. Look for the value corresponding to 100掳C.
02

Verify using the boiling point of water.

We know that water boils at 100掳C (at sea level), which is when its vapor pressure equals the atmospheric pressure. The standard atmospheric pressure is 760 Torr or 101.3 kPa.
03

State the vapor pressure of water at 100掳C.

The vapor pressure of water at 100掳C is equal to the atmospheric pressure, which is 760 Torr or 101.3 kPa.

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Most popular questions from this chapter

You seal a container half-filled with water. Which best describes what occurs in the container? a. Water evaporates until the air becomes saturated with water vapor; at this point, no more water evaporates. b. Water evaporates until the air becomes overly saturated (supersaturated) with water, and most of this water recondenses; this cycle continues until a certain amount of water vapor is present, and then the cycle ceases. c. The water does not evaporate because the container is sealed. d. Water evaporates, and then water evaporates and recondenses simultaneously and continuously. e. The water evaporates until it is eventually all in vapor form. Justify your choice and for choices you did not pick, explain what is wrong with them.

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