
Concept explainers
(a)
Interpretation:
Change in the pressure
Concept introduction:
To study the molecules in gaseous state different laws have been given by different scientists which relates different variables to each other. Boyle’s law which relates pressure and temperature states that when temperature is kept constant for a gas then the pressure and temperature follows the inverse relation. According to Boyle’s law, relation between pressure and volume is written below.

Answer to Problem 10E
Pressure increases with decrease in volume.
Explanation of Solution
According to the equation of Boyle’s law if volume is decreased for a particular or constant temperature then the pressure of the gas will be increased to keep the
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Therefore, net value of pressure increases with decrease in volume.
Net value of pressure increases with decrease in volume.
(b)
Interpretation:
Change in the pressure
Concept introduction:
To study the molecules in gaseous state different laws have been given by different scientists which relates different variables to each other. Gay Lussac’s law one of the

Answer to Problem 10E
The pressure values decreases with decrease in the temperature of the gas.
Explanation of Solution
Relation given by Gay Lussac’s for the gaseous molecule is stated as below.
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Ratio of pressure and temperature is constant. Pressure will be decreased with the decrease in value of temperature to keep the ratio
Therefore, net value of pressure decreases with decrease in volume.
Pressure of a gas decreases with decrease in temperature.
(c)
Interpretation:
Change in the pressure when moles of a gas are decreased is to be stated.
Concept introduction:
To study the molecules in gaseous state different laws have been given by different scientists which relates different variables to each other.

Answer to Problem 10E
Net value of pressure decreases with decrease in number of moles.
Explanation of Solution
Relation given by all the variables of a gas is stated as below.
Gas law is written below.
Gas law for two different gases is shown below.
At constant volume and temperature, equation (2) is shown below.
Where,
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According to the relation given in equation (1), pressure is directly proportional to the number of moles. Pressure will be decreased with the decrease in number of moles to maintain the gas law when all other variables are kept constant.
Therefore, pressure of a gas decreases with decrease in number of moles.
Net value of pressure decreases with decrease in number of moles
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Chapter 10 Solutions
Introductory Chemistry: Concepts and Critical Thinking (8th Edition)
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