c
\(200\,\,c{m^3}\,\,of\,\,0.1\,M\,{H_2}S{O_4}\,\, = \,\,\frac{{0.1\,\, \times \,\,200}}{{1000}}\,\,\, = \,\,0.02\,\,mole\,\,{H_2}S{O_4}\)

\(150\,\,c{m^3}\,of\,\,0.2\,M\,KOH\,\, = \,\,\frac{{0.2\,\, \times \,\,150}}{{1000}}\,\, = \,\,0.03\,\,\,mole\,\,KOH\)

\(0.02\,\,mole\,\,{H_2}S{O_4}\,\, = \,\,2\,\, \times \,\,0.02\,\,mole\,\,{H^ + }\, = \,\,0.04\,\,mole\,\,{H^ + }\,\) અને \(\,0.3\,mole\,\,KOH\,\, \equiv \,\,0.03\,mole\,\,O{H^ - }\)

\(0.03\,v\) મોલ \(OH^-\) આયન \(0.03\,v\) મોલ \(H^+\) આયન સાથે પ્રક્રિયા કરી  \(0.03\) મોલ \(H_2O\) બનાવે છે 

\(=57.1 × 0.03 = 1.7\, KJ\)