A 100 g of ice (solid water) at 0 degrees Celsius melted to water at 75.5 degrees Celsius. If all the heat came from propane (C3H8) combustion, how many grams of propane (molar mass is 44.1 g/mol) must be combusted? (change of H = 6.02 kj/mol, SH2O (l) =4.187 kj/kg)
C3H8 (g) + 5 O2 (g) –> 3 CO2 (g) + 4 H2O (l) change Hc = -2202 kj
(When I wrote change, I meant the triangle sign)
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