Question: a bomb calorimeter is filled with 84 atm of an...
A bomb calorimeter is filled with 8.4 atm of an unknown gaseous
hydrocarbon fuel and an excess of oxygen gas at a temperature of
23.9 °C. The bomb calorimeter has a volume of 1.4 L and a heat
capacity of 8.58 kJ/K. After the combustion reaction is complete
the final temperature of the calorimeter is found to be 74.0 °C.
Answer the following questions based on this information.
(a) What amount of heat in kJ was released from the combustion reaction of the unknown fuel? Please give your answer to 2 decimal places.
(b) What is the molar heat of combustion for the reaction in kJ/mol? Please give your answer to 2 decimal places.
(c) Given the table of data below, what is the identity of the unknown gas?
|Fuel||Chemical Formula||Molar Heat of Combustion|
The identity of the unknown gas is ( ethene, methane ,ethyne, hydrogen)
(d) What is the heat of combustion for the reaction in kJ/g? Please give your answer to 2 decimal places.