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Gaseous propene reacts according to the balanced equation. If atotal of 2240 kJ

ID: 679491 • Letter: G

Question

Gaseous propene reacts according to the balanced equation. If atotal of 2240 kJ of heat is generated in the reaction as written,how many grams of CO2 are produced?

2 C3H6(g) + 9O2(g) 6 CO2(g) + 6H2O(l) .

the tolerance is +/-2%

Gaseous propene reacts according to the balanced equation. If atotal of 2240 kJ of heat is generated in the reaction as written,how many grams of CO2 are produced?

2 C3H6(g) + 9O2(g) 6 CO2(g) + 6H2O(l) .



Enthalpy (kJ) H = -4117.0 Molar Mass C3H6 42.081 O2 31.999 CO2 44.001 H2O 18.015

Explanation / Answer

           2 C3H6(g) + 9O2(g) 6 CO2(g) + 6H2O(l) .          The enthalpyof the reaction H = -4117.0 kJ                 molar mass of CO2 = 44.001 g /mol                   6 (44.001) = 264.006 g              264.006 g of CO2 is produced when 4117.0 kJ heat is liberated.           2240 kJ of heat produce (264.004 *2240 /4117.0 ) =143.64 g of CO2