One mole of nitrogen reacts with one mole of oxygen to form two moles of nitric oxide N2(g) + O2(g) → 2NO(g) AH = + 80.5k %3D If Hp represents the enthalpy of products and H, represents the enthalpy of reactants, then for this reaction Hp is less than H, Hp is equal to H, O it is impossible to tell from given data Hp is greater than H,

One mole of nitrogen reacts with one mole of oxygen to form two moles of nitric oxide N2(g) + O2(g) → 2NO(g) AH = + 80.5k %3D If Hp represents the enthalpy of products and H, represents the enthalpy of reactants, then for this reaction Hp is less than H, Hp is equal to H, O it is impossible to tell from given data Hp is greater than H,

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter5: Thermochemistry

Section: Chapter Questions

Problem 5.39QE

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Concept explainers

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.

Question

100%

One mole of nitrogen reacts with one mole of
oxygen to form two moles of nitric oxide
N2(g) + O2(g) → 2NO(g)
ΔΗ-+ 80.5k
If Hp represents the enthalpy of products and
H, represents the enthalpy of reactants, then
for this reaction
O Hp is less than H,
O Hp is equal to Hp
O it is impossible to tell from given data
O Hp is greater than H,

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