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true or false 6. Solubility of gases in water generally decreases at lower tempe

ID: 693786 • Letter: T

Question

true or false

6. Solubility of gases in water generally decreases at lower temperature. Answl 7. Solubility of gases in water generally decreases at lower partial pressure. Answer: 8. Solubility of solids in water generally increases at lower temperature. Answer: 9. Addition of a nonvolatile solute to a solvent raises the vapor pressure and reduces the boiling point of the solution. Answer: 10. The semipermeable cell membrane in red blood cells permits water and small molecules such as salts to pass through. Answer:

Explanation / Answer

Ans 6 : false

Gases are more soluble at lower temperatures than the higher.

Ans 7 : True

The more the partial pressure of gas above the water surface , the more the gas is soluble in it.

Ans 8 : False

Solids are soluble at higher temperatures , as the heat provides energy for the hydration of ions .

Ans 9 : False

Addition of solute decreases the vapour pressure and increases the boiling point.