Enthalpy change for2 SO2(g) + 2 P(s) + 5 Cl2(g) 2 SOCl2(l) + 2 POCl3(l)SOCl2(l) + H2O(l) SO2(g) + 2 HCl(g) Ho/kJ = +10.3PCl3(l) + 1/2 O2(g) POCl3(l) Ho/kJ = -325.7P(s) + 3/2 Cl2(g) PCl3(l) Ho/kJ = -306.74 HCl(g) + O2(g) 2 Cl2(g) + 2 H2O(l) Ho/kJ = -202.6

The balanced chemical reaction for which the enthalpy change has to be calculated is given below.

Answered: Enthalpy change for 2 SO2(g) + 2 P(s) +…

World of Chemistry, 3rd edition

3rd Edition

ISBN:9781133109655

Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Chapter10: Energy

Section10.3: Energy And Chemical Reactions

Problem 1RQ

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2 SO₂(g) + 2 P(s) + 5 Cl₂(g) 2 SOCl₂(l) + 2 POCl₃(l)

SOCl₂(l) + H₂O(l) SO₂(g) + 2 HCl(g)       H^o/kJ = +10.3
PCl₃(l) + 1/2 O₂(g) POCl₃(l)         H^o/kJ = -325.7
P(s) + 3/2 Cl₂(g) PCl₃(l)           H^o/kJ = -306.7
4 HCl(g) + O₂(g) 2 Cl₂(g) + 2 H₂O(l)        H^o/kJ = -202.6

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