The heat of combustion of \( \mathrm{CH}_{4} \) is \( -400 \mathrm{...

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The heat of combustion of \( \mathrm{CH}_{4} \) is \( -400 \mathrm{~kJ} \mathrm{~mol}^{-1} \).
\( \mathrm{P} \)
Calculate the heat transfer when \( 40 \mathrm{~g} \) of \( \mathrm{H}_{2} \mathrm{O} \) is
W
formed upon combustion:
(1) \( +444.4 \mathrm{~kJ} \)
(2) \( +888.8 \mathrm{~kJ} \)
(3) \( -444.4 \mathrm{~kJ} \)
(4) \( -888.8 \mathrm{~kJ} \)
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