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100 ml 0.5 M H(2)SO(4) (strong Acid) is ...

100 ml `0.5 M H_(2)SO_(4)` (strong Acid) is neutralised by 200 ml 0.2 M `NH_(4)OH` . In a constant pressure calorimeter which results in temperature rise of `1.4 ^(@) C ` . If heat capacity of calorimeter constant is `1.5 kJ// ^(@) C` .
Which statement is /are correct .
Given `HCl + NaOH to NaCl + H_(2)O + 57 kJ CH_(3) COOH + NH_(4) OH to CH_(3) COO NH_(4) + H_(2) O + 48.1 kJ`
Ethalpy of dissociation (ionisation ) of `NH_(4)OH` is 4.5 kJ/mol

Text Solution

Verified by Experts

`-57 + x = 52.5`
`implies x = -52.5 + 57 = 4.5`
`implies ` Enthalpy of dissociation of `NH_(4)OH`
`=4.5 ` kJ/mol
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100 ml 0.5 M H_(2)SO_(4) (strong Acid) is neutralised by 200 ml 0.2 M NH_(4)OH . In a constant pressure calorimeter which results in temperature rise of 1.4 ^(@) C . If heat capacity of calorimeter constant is 1.5 kJ// ^(@) C . Which statement is /are correct . Given HCl + NaOH to NaCl + H_(2)O + 57 kJ CH_(3) COOH + NH_(4) OH to CH_(3) COO NH_(4) + H_(2) O + 48.1 kJ Ethalpy of neutralisation of HCl v/s NH_(4) OH is -52.5 kJ/mol

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