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

question 67

Multiple Choice

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.

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