Asked by Mai

If a particular reaction absorbs 252 kJ of heat while doing 105 kJ of work at constant pressure. What are the ΔE and ΔH for values for the reaction? Is the reaction endothermic or exothermic?

Answers

Answered by DrBob222
q = 252 kJ and it's + so is endothermic
w = 105 kJ and it's - since it is doing the work.
delta E = q+w
delta E = +252 kJ + (-105 kJ)
Answered by Mai
what about the delta H?
Answered by DrBob222
delta H at constant pressure is q. Or perhaps I should say it another way,k q at constant pressure is delta H. So delta H in this case is +252 kJ.
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