A) Given the standard enthalpy changes for the following two reactions: (1) 2C(s) + H2(g)C2H2(g)...... ΔH° = 226.7 kJ (2) 2C(s) + 2H2(g)C2H4(g)......ΔH° = 52.3 kJ what is the standard enthalpy change for the reaction: (3) C2H2(g) + H2(g)C2H4(g)......ΔH° = ? ------- kJ B) Given the standard enthalpy changes for the following two reactions: (1) 2Pb(s) + O2(g)2PbO(s)...... ΔH° = -434.6 kJ (2) Pb(s) + Cl2(g)PbCl2(s)......ΔH° = -359.4 kJ what is the standard enthalpy change for the reaction: (3) 2PbCl2(s) + O2(g)2PbO(s) + 2Cl2(g)......ΔH° = ? ------ kJ
A) Given the standard enthalpy changes for the following two reactions: (1) 2C(s) + H2(g)C2H2(g)...... ΔH° = 226.7 kJ (2) 2C(s) + 2H2(g)C2H4(g)......ΔH° = 52.3 kJ what is the standard enthalpy change for the reaction: (3) C2H2(g) + H2(g)C2H4(g)......ΔH° = ? ------- kJ B) Given the standard enthalpy changes for the following two reactions: (1) 2Pb(s) + O2(g)2PbO(s)...... ΔH° = -434.6 kJ (2) Pb(s) + Cl2(g)PbCl2(s)......ΔH° = -359.4 kJ what is the standard enthalpy change for the reaction: (3) 2PbCl2(s) + O2(g)2PbO(s) + 2Cl2(g)......ΔH° = ? ------ kJ
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter7: Chemical Energy
Section: Chapter Questions
Problem 76E: Write reactions for which the enthalpy change will be a. Hf for solid aluminum oxide. b. the...
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A) Given the standard enthalpy changes for the following two reactions:
(1) 2C(s) + H2(g)C2H2(g)...... ΔH° = 226.7 kJ
(2) 2C(s) + 2H2(g)C2H4(g)......ΔH° = 52.3 kJ
what is the standard enthalpy change for the reaction:
(3) C2H2(g) + H2(g)C2H4(g)......ΔH° = ?
------- kJ
B) Given the standard enthalpy changes for the following two reactions:
(1) 2Pb(s) + O2(g)2PbO(s)...... ΔH° = -434.6 kJ
(2) Pb(s) + Cl2(g)PbCl2(s)......ΔH° = -359.4 kJ
what is the standard enthalpy change for the reaction:
(3) 2PbCl2(s) + O2(g)2PbO(s) + 2Cl2(g)......ΔH° = ?
------ kJ
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