Define molal depression constant or cryoscopic constant.

Define molality.

Define (i) ebullioscopic constant and (ii) cryoscopic constant.

A solution of ,urea In water boils at 100.18 ^@C .‘Calculate the freezing point of the same solution. Molar constants K_t and K_b are 1.86 and 0.512 km^-1 respectively. How-will you differentiate between molar elevation constant and molar depression constant ?

Assertion : Higher the value of molal depression constant of solvent (K) used to prepare the solution, lower will be the freezing point of the solution. Reason : Depression in freezing point depends upon the nature of the solvent. a)If both (A) and (R) are correct and (R) is the correct explanation of(A). b)If both (A) and (R) are correct, but (R) is not the correct explanation of (A). c)If (A) is correct, but (R) is incorrect. d)If both (A) and (R) are incorrect.

Define solubility product constant, K_sp .

Molal depression constant for water is 1.86^@C . What is freezing point of a 0.05 molal solution of a non electrolyte in water?

Assertion : Larges the value of cryoscopic constant of the solvent lesser will be the freezing point of the solution Reason : Depression in the freezing point depends on the nature of the solvent. a)If both (A) and (R) are correct and (R) is the correct explanation of(A). b)If both (A) and (R) are correct, but (R) is not the correct explanation of (A). c)If (A) is correct, but (R) is incorrect. d)If both (A) and (R) are incorrect.

For a process at constant volume