In the presence of excess oxygen, methane gas burns in a constant-pressure system to yield carbon...

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In the presence of excess oxygen, methane gas burns in a constant-pressure system to yield carbon...

In the presence of excess oxygen, methane gas burns in a constant-pressure system to yield carbon dioxide and water:

CH4 (g) + 2O2 (g) ? CO2 (g) + 2H2(l) ?H = -890.0 kJ

Calculate the value of q (kJ) in this exothermic reaction when 1.70 g of methane is combusted at constant pressure.

-94.6 kJ

-9.46 × 104 kJ

-0.0106 kJ

32.7 kJ

0.0306 kJ

science chemistry

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