(a)
Interpretation: The behavior of solubility in water of the gases given in the graph is to be explained due to the increase in temperature.
Concept Introduction: Solubility of any substance is defined as the amount of solute that can be dissolved in a solvent. Where solute is the gas and the solvent is the water while referring to the solubility of the gases.
The solubility of the gas in a liquid is the volume of gas in cubic centimeters that can be dissolved in a unit volume of liquid at a given temperature.
Many factors affect the solubility of the gases namely:
- Temperature
- Pressure
- Nature of gas and the liquid medium
(a)
Answer to Problem 96A
The solubility of the gases decreases with an increase in temperature.
Explanation of Solution
When gas (Solute) is dissolved in water (Solvent), thermal energy is released; therefore, making the solution warmer. This heat overcomes the attractive forces between the gas molecules thereby decreasing the solubility of the gas in the solution.
(b)
Interpretation: The temperature at which gases become virtually insoluble is to be determined.
Concept Introduction: The rise in temperature decreases the solubility of the gases in water/liquid.
(b)
Answer to Problem 96A
From the given graph, at the temperature of
Explanation of Solution
From the given graph the solubility is taken on the y -axis and the temperature on the x -axis. The graphs fall when at the maximum temperature, therefore, indicating that gases are insoluble at the higher temperature.
(c)
Interpretation: The solubility behavior shown in the graph is to be explained using the kinetic theory of gases.
Concept Introduction: Kinetic theory of gases is a
(c)
Answer to Problem 96A
The kinetic energy of gases increases with an increase in temperature.
Explanation of Solution
From the given graph, it was clear that a rise in temperature decreases the solubility of gases. Since the heat is more, there are random atomic/molecular collisions that increase the kinetic energy.
Chapter 16 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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