(a) A 5% solution (by mass) of cane - sugar in water has freezing point of 271 K. Calculate the frttzing point of 5% solution (by mass) of glucose in water if the freezing point of pure water is 273.15 K. [Molecular masses : Glucose C_(6)H_(12)O_(6) : 180 amu, Cane - sugar C_(12)H_(12)O_(11) : 342 amu] (b) State Henry's law and mention two of its important applications.

(a) On dissolving 2.34 g of non-electrolyte 2 solute in 40 g of benene, the boiling point of solution was higher than benzene by 0.81 K. Kb value for benzene is 2.53 K kg mol^(-1) . Calculate the molar mass of solute. [Molar mass of benzene is 78 g mol^(-1) (b) (i) State Henry’s law. (ii) How solubility of a gas in liquid changes with increase in temperature?

State Hooke's law.

State Hooke's law.

State Lenz's law.

Raoult's law is for solvent and Henry's law is for solute.

State Newton's law of cooling.

State Kepler's law of planetary motion.

State Boyle's law.