Question

Under which of the following "pressure situations" will a liquid boil? a. Vapor pressure and atmospheric pressure are equal. b. Vapor pressure is less than atmospheric pressure. c. Vapor pressure $=635 \mathrm{~mm} \mathrm{Hg}$, and atmospheric pressure $=$ 735 mm Hg . d. Vapor pressure $=735$ torr, and atmospheric pressure $=$ 1.00 atm .

Name: Problem 78, Chapter 7: General, Organic, and Biological Chemistry
Uploaded: 2021-04-25T02:16:50-08:00
Duration: 2 min 43 s
Channel: Dr. Satish Ingale
Description: Under which of the following "pressure situations" will a liquid boil? a. Vapor pressure and atmospheric pressure are equal. b. Vapor pressure is less than atmospheric pressure. c. Vapor pressure =635 mm Hg, and atmospheric pressure = 735 mm Hg . d. Vapor pressure =735 torr, and atmospheric pressure = 1.00 atm .

   Under which of the following "pressure situations" will a liquid boil? a. Vapor pressure and atmospheric pressure are equal. b. Vapor pressure is less than atmospheric pressure.
c. Vapor pressure $=635 \mathrm{~mm} \mathrm{Hg}$, and atmospheric pressure $=$ 735 mm Hg .
d. Vapor pressure $=735$ torr, and atmospheric pressure $=$ 1.00 atm .

General, Organic, and Biological Chemistry

H. Stephen Stoker 5th Edition

Chapter 7, Problem 78

Instant Answer

Solved by Expert Dr. Satish Ingale

04/25/2021

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A liquid boils when its vapor pressure equals the atmospheric pressure. This means that the liquid can escape into the gas phase, forming bubbles within the liquid. Show more…

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Under which of the following "pressure situations" will a liquid boil? a. Vapor pressure and atmospheric pressure are equal. b. Vapor pressure is less than atmospheric pressure. c. Vapor pressure $=635 \mathrm{~mm} \mathrm{Hg}$, and atmospheric pressure $=$ 735 mm Hg . d. Vapor pressure $=735$ torr, and atmospheric pressure $=$ 1.00 atm .

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Key Concepts

Vapor Pressure

Vapor pressure is the pressure exerted by the vapor molecules in equilibrium with their liquid phase at a given temperature. It is a measure of the tendency of particles to escape from the liquid into the gas phase and increases with temperature until it equals the ambient pressure, leading to boiling.

Atmospheric Pressure

Atmospheric pressure is the pressure exerted by the weight of the air in the atmosphere on the surface of a liquid. It plays a critical role in boiling since a liquid will boil when its vapor pressure equals the atmospheric pressure, allowing bubbles to form.

Boiling Point

The boiling point is defined as the temperature at which the vapor pressure of a liquid equals the atmospheric pressure. At this point, the liquid undergoes a phase transition to a gas throughout the bulk, not just at the surface, which is characteristic of boiling.

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