what is the final temperature inside the vessel after combustion, assuming that the steel vessel has a mass of 13.720 kgkg , the mixture of gases has an average molar heat capacity of 21 j/(mol⋅∘c)j/(mol⋅∘c) , and the heat capacity of steel is 0.499 j/(g⋅∘c)j/(g⋅∘c) ?
