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How Much Energy Is Required to Decompose 800 G of PCl3,according

Question 101

Multiple Choice

How much energy is required to decompose 800 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


A) 2.71 × 103 kJ
B) 4.53 × 103 kJ
C) 6.72 × 103 kJ
D) 1.76 × 103 kJ
E) 5.90 × 103 kJ

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