Chapter 8, Problem 105QGW

Consider the combustion of propane:

${\text{C}}_3{\text{H}}_8(g)+O_2(g)\to \text{C}{O}_2(g)+H_2\text{O(}g\text{)}$

a. Balance the reaction.

b. Divide all coefficients by the coefficient on propane, so that you have the reaction for the combustion of 1 mol of propane.

c. ∆H_rxn for the combustion of one mole of propane is −2219 kJ. What mass of propane would you need to burn to generate 5. 0MJ of heat?

d. If propane costs about $0.67/L and has a density of 2.01 g/cm³, how much would it cost to generate 5.0 MJ of heat by burning propane?