- #1
jennypear
- 16
- 0
Propane, C3H8(g), is used in many instances to produce heat by burning:
C3H8(g) + 5O2(g) --> 3CO2(g) + 4H2O(g)
The standard enthalpy of reaction, , is -2,044 kJ. How many grams of oxygen would be needed to react with excess propane to produce 213.0 kJ of heat?
heat of formation of CO2 and h2o were given previously
so i started by finding the heat of formation of c3h8
hrx=((sumHproduct) - (sum of Hreact))
-2044kJ=[3mol*-394KJ/mol)+(4mol*-286kJ/mol)]-x
x=-282kJ
not sure how to proceed from here?
C3H8(g) + 5O2(g) --> 3CO2(g) + 4H2O(g)
The standard enthalpy of reaction, , is -2,044 kJ. How many grams of oxygen would be needed to react with excess propane to produce 213.0 kJ of heat?
heat of formation of CO2 and h2o were given previously
so i started by finding the heat of formation of c3h8
hrx=((sumHproduct) - (sum of Hreact))
-2044kJ=[3mol*-394KJ/mol)+(4mol*-286kJ/mol)]-x
x=-282kJ
not sure how to proceed from here?