Can you awnser and give an explanation? How does the solubility of a gas in a so

Question

Can you awnser and give an explanation?

How does the solubility of a gas in a solvent depend on pressure and temperature ? Increasing the partial pressure of the gas while decreasing the temperature increases the solubility of the gas. Increasing the partial pressure of the gas while increasing the temperature increases the solubility of the gas. Decreasing the partial pressure of the gas while decreasing the temperature increases the solubility of the gas. Decreasing the partial pressure of the gas while increasing the temperature increases the solubility of the gas. Gas solubility is unaffected by pressure or temperature.

Explanation / Answer

Recall that Henry Law can explain this:

Concentration/solubiltiy of gas in aqueous phase = Henry constant * Partial Pressure of gas

then

a)

Best answer; since partial pressure increases, will increase Solubility, and decrease in T increases H constant, so it also increases solubility

b)

this might be true for increase in partial pressure, but increase in T decreases H, so this depends mainly on the ratio difference between Henry constant (T) vs. Partial Pressure (P)

c)

False, decrease in P decreases solubility

d)

False, decrease in P decreases solubility

e)

False

Best option is A; increase in P and decrease in T

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