Heat of neutralisation of a strong acid by a strong base is equal to `DeltaH` of

Options

A. `H^(+)+OH^(-)=H_(2)O`
B. `H_(2)O+H^(+)=H_(3)O^(+)`
C. `2H_(2)O_(2)=2H_(2)O`
D. `CH_(3)COOH+NaOH=CH_(3)COONa+H_(2)O`

Answer

C

Explanation

`NaOH + HCl rarr NaCl + H_(2)O`
`Na^(+) + OH^(-) + H^(+) + Cl^(-) rarr + Na^(+) + Cl^(-) + H_(2)O`
`OH^(-) + H^(+) rarr H_(2)O`
`Delta H_("neut") = 57.1 kl//mol`