what relationship exists between solubility and temperature for most solid and l

Question

what relationship exists between solubility and temperature for most solid and liquid substance?

a. as temperature increases solubility decreases

b. as temperature increases solubility increases

c. as temperature decreases solubility increases - not the right answer

d. none of the above

The solubility of nitrogen gas in water can be increased by

1. increasing the pressure of N2 2. increasing the temperature of H2O 3. decreasing the temperature of H2O

a. 1 only not the right answer

b. 2 only

c. 3 only

d. 1 and 2 only

e. 1 and 3 only

Explanation / Answer

Ans 1. b. As temperature increases solubility increases

Increase in temperature , increases the kinetic energy of the solvent molecules , that help to break apart the intermolecular forces present in solids and liquids that restrain them to become soluble.

Hence increase in temperature increases the solubilty of solids and liquids , for eg salt and sugar are easily soluble at higher temperatures.

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