0.06mole of KNO_(3) is added to 100cm^(3) of water at 298K . The enthalpy of KNO_(3) aq. Solution is 35.8kJ mol^(-1). After the solute is dissolved , the temperature of the solution will be

0.06mole of KNO_(3) is added to 100cm^(3) of water at 298K . The entha

1.	0.06mole of KNO_(3) is added to 100cm^(3) of water at 298K . The enthalpy of KNO_(3) aq. Solution is 35.8kJ mol^(-1). After the solute is dissolved , the temperature of the solution will be
Answer» 293K 298K 301K 304 K Solution :Dissoluation of `KNO_(3)` in WATER is endothermic, `DeltaH _(sol) = 35.8 kJ mol^(-1)` `:.` Heat absorbed when 0.06 mole of `KNO_(3)` is DISSOLVED `= 35.8 xx 0.06 kJ = 2148 J` `q= m xx C xx DeltaT` `:. 2148 = 100 xx 4.184 xx DeltaT` or `DeltaT = 5K` `:. `TEMPERATUREOF the solution `= 298 -5= 293K`.