Question

This is a Physical Chemistry Problem: Identify the number of components and phases that exist in each system described below. (a) Ice water (b) A 50% by mole solution of water and methanol (c) A pressurized tank of carbon dioxide that contains both liquid and gas (d) A bomb calorimeter that contains a benzoic acid pellet and 30 bar of O₂ gas (e) the same calorimeter after ignition.

Answer 1

Solution :-

(a) Ice water = 1 component and phases are solid and liquid

(b) A 50% by mole solution of water and methanol = two components and phase is liquid

(c) A pressurized tank of carbon dioxide that contains both liquid and gas = 1 component and phases are liquid and solid.

(d) A bomb calorimeter that contains a benzoic acid pellet and 30 bar of O₂ gas = two components and phases are solid and gas

(e) the same calorimeter after ignition = two components and phase is gas