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OpenStudy (anonymous):
Choose the reaction for which the heat contribution to the change in internal energy is positive AND the work contribution to the change in internal energy is negative N2(g) + O2(g) 2NO(g) ΔrH° = +90 kJ mol–1 CH4(g) + H2O(g) CO(g) + 3H2(g) ΔrH° = +206 kJ mol–1 4NH3(g) + 5O2(g) 4NO(g) + 6H2O(g) ΔrH° = -908 kJ mol–1 2H2S(g) + SO2(g) 3S(s) + 2H2O(g) ΔrH° = -729 kJ mol–1
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