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  • 25-02-2020
  • Chemistry
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How much energy is required to decompose 612 g of PCl3, according to the reaction below? The molar mass of PCl3 is 137.32 g/mol and may be useful.4 PCl3(g) → P4(s) + 6 Cl2(g) ΔH°rxn = +1207 kJ

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osagieosazeme72
osagieosazeme72 osagieosazeme72
  • 25-02-2020

Answer:+1345.8kj

Explanation:

No of miles of PCl3 = 612/137.32

= 4.46 moles

Therefore, 4 moles > 1207

4.46 moles> x

X= (1207× 4.46)÷ 4

X= 1345.8kj

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