   Chapter 4, Problem 3RQ

Chapter
Section
Textbook Problem

Which of the following gas laws states that in a mixture of gases the total pressure is equal to the sum of the partial pressure of each gas?A. Dalton's lawC. Charles'lawB. Gay-Lussac’s lawD. Boyle's law

Summary Introduction

Introduction:

The partial pressure of a gas can be defined as the force exerted by that specific gas in a mixture of various gases. Atmospheric pressure is defined as the pressure that is exerted by the atmosphere on a surface or a body. The value of atmospheric pressure is 760 mm Hg (millimeters of mercury).

Explanation

Justification/explanation for the correct answer:

Option (A) is given as Dalton’s law. It is also called the law of partial pressures. It states that the total pressure exerted by a mixture of gases can be calculated by adding the partial pressure exerted by each gas in the mixture. This law is based on the fact that the partial pressure of a gas is directly proportional to the concentration of that gas. This partial pressure is also related to barometric pressure. Hence, option (A) is correct.

Explanation for the incorrect answers:

Option (B) is given as Gay Lussac’s law. According to this law, the pressure exerted on the sides of a container having an ideal gas, with a constant volume and mass is directly related to the absolute temperature of the gas...

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