Question

For the reaction C2H4(g) + Cl2(g) ? C2H4Cl2(l), determine ?rH°, given that 4 HCl(g) + O2(g) ? 2 Cl2(g) + 2 H2O(l) ?rH° = -202.4 kJ mol?1 2 HCl(g) + C2H4(g) + 1/2 O2(g) ? C2H4Cl2(l) + H2O(l) ?rH° = -318.7 kJ mol?1

          For the reaction C2H4(g) + Cl2(g) ? C2H4Cl2(l), determine ?rH°,
given that
4 HCl(g) + O2(g) ? 2 Cl2(g) + 2 H2O(l)
?rH° = -202.4 kJ mol?1
2 HCl(g) + C2H4(g) + 1/2 O2(g) ?
C2H4Cl2(l) + H2O(l) ?rH° = -318.7 kJ mol?1

Added by Thomas B.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert David Collins

07/14/2023

Step 1

To do this, we can use the given reactions and their enthalpy changes: 1) 4HCl(g) + O2(g) → 2Clz(g) + 2H2O(l), ΔH1 = -202.4 kJ/mol 2) 2HCl(g) + CzHa(g) + 1/2O2(g) → 2C2H4Cl2(l) + H2O(l), ΔH2 = -318.7 kJ/mol We want to find the enthalpy change for the Show more…

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For the reaction C2H4(g) + Cl2(g) → C2H4Cl2(l), determine ΔrH°, given that 4HCl(g) + O2(g) → 2Cl2(g) + 2H2O(l) ΔrH° = -202.4 kJ/mol and 2HCl(g) + C2H4(g) + 1/2 O2(g) → C2H4Cl2(l) + H2O(l) ΔrH° = -318.7 kJ/mol.