What Is the Minimum Energy Required to Decompose 765 G

question 108

Multiple Choice

What is the minimum energy required to decompose 765 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)2.31 × 10³ kJ
• B)4.33 × 103 kJ
• C)6.72 × 10³ kJ
• D)1.68 × 10³ kJ
• E)5.95 × 10³ kJ

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Definitions:

Returns to Scale

The rate at which output increases as inputs are increased proportionally in the production process.

Logarithmic Variable Cost Function

A formula representing the variable costs of production as a logarithmic function, indicating how these costs evolve as production volume changes.

Increasing Rate

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