Problem: For the reaction, CH4 (g) + 2O2 (g) → CO2 (g) + 2H2O (l), ΔH = -890 kJ, what will be the change in enthalpy when 3 moles of methane reacts in excess oxygen?

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We are asked to calculate for the change in enthalpy when three moles of methane reacts in excess oxygen

Given the reaction:

CH4 (g) + 2O(g) → CO2 (g) + 2H2O (l)                                   ΔH = -890 kJ

We expect that the ΔH given is the heat released (negative sign) when one mole of methane combusts in the presence of excess oxygen.


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Problem Details

For the reaction, CH4 (g) + 2O2 (g) → CO2 (g) + 2H2O (l), ΔH = -890 kJ, what will be the change in enthalpy when 3 moles of methane reacts in excess oxygen?

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