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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Chemistry

28 November, 21:52

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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Elise Mcdaniel · Answer 1

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