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  • A solution of 500ml of 0.2M KOH and 500ml of 0.2M HCl is mixed and stirred. The rise in temperature is . The experiment is repeated using 250ml each of

A solution of 500ml of 0.2M KOH and 500ml of 0.2M HCl is mixed and stirred. The rise in temperature is T_1. The experiment is repeated using 250ml each of solution, the temperature raised is T_2. Which of the following is true?

Option: 1

T_1=T_2


Option: 2

T_1=2T_2


Option: 3

T_1=4T_2


Option: 4

T_2=9T_1


Answers (1)

best_answer

Suppose heat evolved in 1st case is Q_1 and that in the second case is Q_2.

Then Q_2= \frac{1}{2}Q_1       But Q_1=1000T_1

and Q_2=500T_2

\Rightarrow 500T_2= \frac{1}{2}\times 1000T_1    

i.e\: \: T_2=T_1

Posted by

Shailly goel

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