8.314 J8.314 \mathrm{~J} 8.314 J
4200 J4200 \mathrm{~J}4200 J
3.36×105 J3.36 \times 10^{5} \mathrm{~J} 3.36×105 J
4.2 J4.2 \mathrm{~J}4.2 J