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In the reaction between strong acid and ...

In the reaction between strong acid and strong base, 1.8 g of water is formed. The heat evolved is used to raise the temperature of one kg of water at `25^@C`. What is the final temperature of water? 

Text Solution

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Number of moles of water formed
`= ("weight of water")/("gram molecular weight") =(1.8)/(18) =0.1` Heat liberated `= 13.7 xx 0.1 = 1.37 K.` Cal. Heat (9) is given as, `q = ms q 1.37 xx 1000 = 1000 xx 1 xxq.`
The rise in temperature of water `q = 1.37^(@).`
Final temperature of water `= 25 + 1.37^(@) = 26.37^(@)C`
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