If the average rate of decomposition of PH₃(g) is 3.2 (mol PH₃).L^-¹.min^-¹ for the reaction 2PH₃(g)$\rightarrow$ 2P(g)+ 3H₂(g), The unique average reaction rate is A) 3.2 mol.L^-¹.min^-¹. B) 2.1 mol.L^-¹.min^-¹. C) 1.6 mol.L^-¹.min^-¹. D) 4.8 mol.L^-¹.min^-¹. E) 6.4 mol.L^-¹.min^-¹.

Question

Quizplus · Accepted Answer

The unique average reaction rate is calculated based on the stoichiometry of the reaction. Since the decomposition rate of PHS is given as 3.2 mol/min, and the reaction coefficient for PHS is 2, the unique average reaction rate is half of the decomposition rate, which is 1.6 mol/min. This is because the reaction rate is defined per stoichiometric coefficient in the balanced equation.

If the Average Rate of Decomposition of PH3(g) Is 3 →\rightarrow→

If the Average Rate of Decomposition of PH₃(g) Is 3 $\rightarrow$