The change in enthalpy (Δ H) for the reaction 2P(s) + 3Br₂(l) → 2PBr₃(l) is –243 kJ. In this reaction, if the… · ABC26PH0620

Subject: Physical Chemistry · Chapter: Thermodynamics · Topic: Laws State Functions · Exam: GATE 2005-2021 · Marks: 2 · Difficulty: Hard

The change in enthalpy ($\Delta H$) for the reaction
$$\mathrm{2P(s) + 3Br_2}(l) \rightarrow \mathrm{2PBr_3}(l)$$
is –243 kJ. In this reaction, if the amount of phosphorus consumed is 3.1 g, the change in enthalpy (rounded off to two decimal places) is ____ kJ. [Atomic Wt. of P = 31]
Answer
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