## Chemistry and Chemical Reactivity (9th Edition)

Volume of water: $2.54\ cm\div 100\ cm/m\times 2.59\times 10^6\ m^2= 6.58\times10^4\ m^3$ Density: $1\ g/cm^3=1000\ kg/m^3$ Number of moles: $6.58\times10^4\ m^3\times1000\ kg/m^3\times1000\ g/kg\div 18.015\ g/mol=3.65\times10^9\ mol$ Heat released on condensation: $3.65\times10^9\ mol\times 44.0\ kJ/mol=1.61\ times 10^{11}\ kJ$ Or $1.61\ times 10^{11}\ kJ\div4.2\times10^6\ kJ/ton=38257\ ton\ TNT$