The standard disposable propane cylinders for use with camp stoves, lanterns, portable barbecues, etc, contain 355 g of propane. Calculate the total energy available from one of these cylinders.
C3H8 + 5O2 == 3CO2 + 4H2O
Look up the delta H for this reaction or calculate it from
dHrxn = (n*dHo products) - (dHo reactants) = ?
Then that is the dH for the reaction for 44 g C3H8. Call that Y.
Then Y x (355/44) = ? energy available.
Alright thank you so much for your help! I really appreciate it.
You're welcome.
To calculate the total energy available from one of these propane cylinders, you need to know the energy content of propane. Propane has a known energy content of approximately 46,614 kilojoules (kJ) per kilogram (kg).
To calculate the total energy available from the 355 grams (0.355 kg) of propane in the cylinder, you can use the following equation:
Total Energy = Propane Mass x Propane Energy Content
Substituting the values:
Total Energy = 0.355 kg x 46,614 kJ/kg
Total Energy ≈ 16,556.87 kJ
Therefore, one of these propane cylinders contains approximately 16,556.87 kilojoules of energy.