One mole of nitrogen reacts with one mole of oxygen to form two moles of nitric oxide N2(g) + O2 2NO(g) H = +

Question

One mole of nitrogen reacts with one mole of oxygen to form two moles of nitric oxide 
N2(g) + O2  2NO(g)  H = + 80.5k

If HP denotes the enthalpy of products and Hr denotes the enthalpy of reactants, then


a.	HP > Hr
b.	HP < Hr
c.	HP = Hr
d.	HP  Hr
e.	impossible to tell from given data

GPT-5 mini · Answer

Answer: a. HP > Hr

Reason: ΔH = H_products − H_reactants = +80.5 kJ, so H_products is 80.5 kJ higher than H_reactants (endothermic reaction).

One mole of nitrogen reacts with one mole of oxygen to form two moles of nitric oxide
N2(g) + O2 2NO(g) H = + 80.5k

If HP denotes the enthalpy of products and Hr denotes the enthalpy of reactants, then

a. HP > Hr
b. HP < Hr
c. HP = Hr
d. HP Hr
e. impossible to tell from given data

All Answers 1

Submit Your Answer

One mole of nitrogen reacts with one mole of oxygen to form two moles of nitric oxide N2(g) + O2 2NO(g) H = + 80.5k If HP denotes the enthalpy of products and Hr denotes the enthalpy of reactants, then a. HP > Hr b. HP < Hr c. HP = Hr d. HP Hr e. impossible to tell from given data

All Answers 1

Submit Your Answer

One mole of nitrogen reacts with one mole of oxygen to form two moles of nitric oxide
N2(g) + O2 2NO(g) H = + 80.5k

If HP denotes the enthalpy of products and Hr denotes the enthalpy of reactants, then

a. HP > Hr
b. HP < Hr
c. HP = Hr
d. HP Hr
e. impossible to tell from given data