Is the reaction exothermic or endothermic

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Measurements show that the enthalpy of a mixture of gaseous reactants increases by 281.kJ during a certain chemical reaction, which is carried out at a constant pressure. Furthermore, by carefully monitoring the volume change it is determined that 77.kJ of work is done on the mixture during the reaction. 

Is the reaction exothermic or endothermic?

Reference no: EM131836424

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