Question

Define the following terms : 
a. Cryoscopic constant
b. Resistivity 

Answer 1

Cryoscopic constant:
Molal depression constant or cryoscopic constant is the depression in the freezing point of a solution containing one mole of the non - volatile solute in one kilogram of solvent.

Resistivity or specific resistance:
Resistivity is defined as the resistance of the conductor that is 1 m long and 1 m² in cross-sectional area.