\(32\,\,g\,{O_2}\) માં અણુઓની સંખ્યા \( = \,\frac{{6.02 \times {{10}^{23}} \times 200}}{{32}}\,\, = 3.76 \times {10^{24}}\)

\(\therefore \,\,\,200\,\,g{O_2}\) ની કુલ ઉષ્મિય ઉર્જા 

\(\, = \,3.76 \times {10^{24}} \times \frac{5}{2}{k_B}T\,\,\,\,\, = \frac{{3.76 \times {{10}^{24}} \times 5 \times 1.38 \times {{10}^{ - 23}} \times 300}}{2}\,\,\,\,\, = 3.8 \times {10^4}\,\,J\)