Select the correct statement about

CHEMISTRY · Single correct · AP · Chemistry · Thermochemistry · Thermochemistry

Problem

Select the correct statement about CH4(g)+2O2(g)⟶CO2(g)+2H2O(g)\text{CH}_4(g) + 2\text{O}_2(g) \longrightarrow \text{CO}_2(g) + 2\text{H}_2\text{O}(g) (1) work is done on surroundings (2) work done is negative (3) work done is positive (4) no work is done

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