If the Average Rate of Decomposition of PH₃(g)is 3

question 50

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)  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}.