Methane has the alkane functional group, so the name is composed of meth- for the carbon chain, and –ane for the alkane functional group
<span>802 mm Hg X 13.5/1 = 10827 mm H2O X (1 cm/10 mm) = 1083 cm H2O = 1.08 X 10^3 cm H2O</span>
The answer is C. Assume specific heat to be 4.18 J/g/C