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  4. Heat liberated' when 100 mL of 1 N NaOH isneutralised by 300 mL of 1 N HCl

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Q. Heat liberated' when 100 mL of 1 N NaOH isneutralised by 300 mL of 1 N HCl

KCETKCET 2003Thermodynamics

Solution:

100 mL of 1 N NaOH will be exactly neutralised with 100 mL of 1 NHC1.
1000 mL of 1 N NaOH react with 1000 mL of
HC1 to give 57.3 kJ of heat
$\therefore $ 100 mL of 1 N NaOH will react with 100 mL of 1 N HCI to give $\frac{57.3}{1000} \times 100$ = 5.73 kJ of heat