ALEKS 360-ACCESS (52 WEEKS)
4th Edition
ISBN: 9781260996760
Author: Burdge
Publisher: MCG
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Chapter 5.7, Problem 1PPB
Interpretation Introduction
Interpretation:
The enthalpy change of the reaction is to be calculated.
Concept introduction:
Hess’s law states that the change in enthalpy of a reaction remains the same whether the reaction takes place in a single step or in a number of steps.
On adding the thermochemical equations, the value of enthalpy change is also added, which gives the enthalpy change of the net reaction.
On reversing any equation, the sign of enthalpy change value is changed to the opposite sign.
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Calculate the average H-S bond enthalpy in H2S(g) given that thestandard enthalpies of formation of H2S(g), H(g) and S(g) are-20.1, 218.0, and 223.0 kJ/mol, respectively. Answer = 340 kJ/mol, how do I derive please?
Practice Exercise 1If the heat of formation of H2O1l2 is -286 kJ>mol, whichof the following thermochemical equations is correct?(a) 2 H1g2 + O1g2¡H2O1l2 ΔH = -286 kJ(b) 2 H21g2 + O21g2¡2 H2O1l2 ΔH = -286 kJ(c) H21g2 + 12 O21g2¡H2O1l2 ΔH = -286 kJ(d) H21g2 + O1g2¡H2O1g2 ΔH = -286 kJ(e) H2O1l2¡H21g2 + 12O21g2 ΔH = -286 kJ
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Chapter 5 Solutions
ALEKS 360-ACCESS (52 WEEKS)
Ch. 5.1 - Practice Problem ATTEMPT
(a) Calculate the energy...Ch. 5.1 - Practice Problem BUILD
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