Given that, for the reaction H+ (aq) + OH- (aq) H

Question

Given that, for the reaction H+ (aq) + OH- (aq) H2 O (I), energy released is 57.1 kJ. Three reactions are given as follows(1) 0.25 mole of HCI in solution is neutralized by 0.25 mole of NaOH; heat released is ΔH1.(2) 0.5 mole of HNO3 in solution is mixed with 0.2 mole of KOH solution; heat released is ΔH2.(3) 200 cm3 of 0.2 M HCI solution is mixed with 300 cm3 of 0.1 M NaOH solution heat released is ΔH3.The correct order for the numerical value of ΔH1, ΔH2, ΔH3 would be?

Raghuvir · Accepted Answer

In 1st ... 0.25 mol HCl will react wilth 0.25 mol NaOH, so the reaction will be NaOH + HCl ~ H2O + NaCl, so ∆H1=∆H .In 2nd reaction also there is reaction between an strong acid and strong base but 0.5 mol will not have any impact.so ∆H2=∆H. In 3rd also there is samereaction but 10 milimoles remain in react that will only change pH of Sol. So ∆H1=

Physical Chemistry> Given that, for the reaction H+ (aq) + OH...

meghna , 6 Years ago

Raghuvir

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Physical Chemistry> Given that, for the reaction H+ (aq) + OH...

meghna , 6 Years ago

Raghuvir

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