Concept explainers
(a)
Interpretation:
The change in solubility of helium in water with increase in temperature has to be given.
Concept Introduction:
The solubility of ionic and molecular solids increases with increase in temperature, whereas the solubility of gas decreases with increases in temperature.
(b)
Interpretation:
The change in solubility of helium in water with decrease in temperature has to be given.
Concept Introduction:
Refer to part (a).
(c)
Interpretation:
The change in solubility of helium in water with increase in pressure has to be given.
Concept Introduction:
Henry’s law: The solubility of a gas in liquid is proportional to the partial pressure of the gas above the liquid.
For ionic/molecular solids, the solubility remains unaffected with respect to pressure.
For gases, the change in pressure would affect the solubility.
(d)
Interpretation:
The change in solubility of helium in water with decrease in pressure has to be given.
Concept Introduction:
Refer to part (c).

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Chapter 7 Solutions
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