Steve,
I don't know what equations to use for these two questions
1. How many grams of ethylene (C2H4) would have to be burned to produce 430.4 kJ of heat?
C2H4(g) + 3O2(g) -> 2CO2(g) + H2O(l) ΔHorxn=-1411 kJ
2. Ethanol fuel (C2H5OH) burns according to the equation below.
What is the value of qp (kJ) when 20.3 g of ethanol is burned?
C2H5OH(l) + 3O2(g) -> 2CO2(g) + 3H2O(l) Δ H= -1367 kJ |
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