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Q.

The amount of heat released, when 20 ml of 0.5 M NaOH is mixed with 100 ml of 0.1 M HCl, is x kJ. The heat of neutralization is

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a

100 ´ kJ mole-1

b

-100 ´ kJ mole-1 

c

-23.92 ´ k Cal mole-1

d

10 ´ k Cal mole-1 

answer is C, D.

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Detailed Solution

no molesof NaOH = 0.02

nomolesof HCl = 0.01

for one mole NaOH with1mole HCl=x0.01

Heat = -100KJ / moles.

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