AH is an Extensive Peperty INp 0:(p NOig Part C AH Changes sign when a process is nevered 2NOg Ng+ O:g) Hess Law o Constart Heat Sunution Hess's Law of Constant Heat Summation. + N: (g) 0:() → Click on the AH. for the following reaction button within the activity and use the example shown to calculate the reaction enthalpy, CH4(g) + 202(g)→CO2(g) + 2H20(1)Use the series of reactions that follow: When two actions are added together, the individual reaction enthaleies arce summed. Notice that equaal quantities of the same species, on hoth sides of the reaction anow, 1. C(s) + 2H2(g)→CH4(g), AH = -74.8 kJ. 2. C(s) + O2(g)→CO2(g), AH = -393.5 kJ. 3. 2H2(g) + O2(g)→2H2O(g), AH = -484.0 kJ. 4. H20(1)→H2O(g), AH = 44.0 kJ. Express your answer with appropriate units. > View Available Hint(s) HÀ Value Units
AH is an Extensive Peperty INp 0:(p NOig Part C AH Changes sign when a process is nevered 2NOg Ng+ O:g) Hess Law o Constart Heat Sunution Hess's Law of Constant Heat Summation. + N: (g) 0:() → Click on the AH. for the following reaction button within the activity and use the example shown to calculate the reaction enthalpy, CH4(g) + 202(g)→CO2(g) + 2H20(1)Use the series of reactions that follow: When two actions are added together, the individual reaction enthaleies arce summed. Notice that equaal quantities of the same species, on hoth sides of the reaction anow, 1. C(s) + 2H2(g)→CH4(g), AH = -74.8 kJ. 2. C(s) + O2(g)→CO2(g), AH = -393.5 kJ. 3. 2H2(g) + O2(g)→2H2O(g), AH = -484.0 kJ. 4. H20(1)→H2O(g), AH = 44.0 kJ. Express your answer with appropriate units. > View Available Hint(s) HÀ Value Units
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter8: Thermochemistry
Section: Chapter Questions
Problem 75QAP: Some solar-heated homes use large beds of rocks to store heat. (a) How much heat is absorbed by...
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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
Transcribed Image Text:N:(g) + 0: (g) → 2NOg)
AH is an Extensive Property
- N: (g) +0:(g) NO(g)
Part C
AH Changes sign when a
process is revTed
2NOg) N;(g) + 0: (g)
Hess's Law of Constant
Heat Sunnation.
Hess's Law of Constant
Heat Summation.
+ N: (g) +0: (g) →
NQig +0: (g)
Click on the
AH, for the following reaction:
button within the activity and use the example shown to calculate the reaction enthalpy,
When two reactions are
added together, the
individual reaction
enthalpies are summed.
Notice that equal quantities
of the same species, on both
sides of the reaction arrow,
cancel.
CH4(g) + 202(g)→CO2(g) + 2H2O(1)Use the series of reactions that follow:
» NO: (g)
1. C(s) + 2H2(g)→CH4(g), AH = -74.8 kJ.
2. C(s) + O2(g)→CO2(g), AH = -393.5 kJ.
3. 2H2(g) + O2(g)→2H2O(g), AH =-484.0 kJ.
4. H2O(1)→H2O(g), AH = 44.0 kJ.
IN:(g) + 0:(g → NO:()
Express your answer with appropriate units.
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