SolutionHard
Question
When KCl dissolves in water (assume endothermic dissolution) :
Options
A.ᐃH = + ve, ᐃS = + ve, ′G = + ve
B.ᐃH = + ve, ᐃS = - ve, ᐃG = - ve
C.ᐃH = + ve, ᐃS = + ve, ᐃG = - ve
D.ᐃH = - ve, ᐃS = - ve, ᐃG = + ve
Solution
Some solids dissolves exothermically as LiCl (ᐃH = - ve) and other dissolved endothermically as KCl (ᐃH = +ve). solvent-solvent interaction and solute-solute interaction are endothermic while solvent-solute interaction is exothermic. The sum of the three interaction determines whether ᐃHsol is endothermic or exothermic.
Create a free account to view solution
View Solution FreeMore Solution Questions
If 0.1 molal aqueous solution of sodium bromide freezes at −0.3348°C at one atmospheric pressure, then the percent disso...3.24 g of Hg(NO3)2 (molar mass = 324) dissolved in 1000 g of water constitutes a solution having a freezing point of - 0...The vapour pressure of an aqueous solution is found to be 750 torr at a temperature T, and the same solution shows an el...40 ml of 0.1 M ammonia solution is mixed with 20 ml of 0.1 M HCl. What is pH of themixture ?( pkb of ammonia solution is...Kf for water is 1.86 K Kgmol-1. If your automobile radiator holds 1 kg water, how many grams of ethylene glycol (C2H6O2)...