Calculate the valie for the heat of formation for pentane given the heat of combustion of pentane is $147\mathrm{.}3$kJ $,$ and the heat of formation of water is $-285\mathrm{.}8$kJ$/$mol$.$ You may assume this is run at $27\mathrm{.}9\backslash$deg C$.$

$1.$ What is the coefficient of water in the balanced equation?

$2.$ What is the coefficient of carbon dioxide in the balanced equation?

$3.$ What is the change of H temp f of pentane for this reaction

Calculate the value for the heat of formation for pentane given the heat of combustion of pentane is $147\mathrm{.}3k\frac{J}{m}ol,$ the heat of formation of carbon dioxide is $-393\mathrm{.}5k\frac{J}{m}ol,$ and the heat of formation of water is $-285\mathrm{.}8k\frac{J}{m}ol.$ You may assume this is run at $27\mathrm{.}9C.$

HINT : Write a balanced equation and write the equation for the enthalpy of combustion as products