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MHT CET Chemistry question

ChemistryThermodynamicsMHT CET

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

Answer: (A)

Solution

First case: 0.1 mol of water is formed in 1000 ml; second case: 0.05 mol in 500 ml, so heat evolved and mass heated

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Question ID VK-064102