COMEDK Exam 2012 Solved Paper

Number of gram equivalent of HCl
=N1V1=2×

500

1000

=1
No. of gram equivalent of NaOH
=N2V2=4×

250

1000

=1
∵ Both NaOH and HCl are one gram equivalents.
∴ Heat evolved during reaction is equal to enthaply of neutralisation i.e. xkJ.