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Calculate the enthalpy of the reaction 2NO(g) + O2(g) +2NO2 (g) given the following reactions and enthalpies of formation: 1;
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ZNO (g) to 200 AH = ? Ir tt – NO AH090.265 DH = 90. ? 193 199 cg) Reverse the above reaction and multiply with 2 sign of at

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