Phosphine (PH3) decomposes into phosphorus and molecular hydrogen: 4PH3(g) right

Question

Phosphine (PH3) decomposes into phosphorus and molecular hydrogen: 4PH3(g) rightarrow P4(g) + 6H2(g) Experiments show that this is a first-order reaction, with a rate constant of 0.0173 s^-1 at 650 degree C. Identify each of the following statements about this reaction as true or false. (Use the drop-down menu and select "True" or "False" for each. You must get all 4 correct.) The rate constant would be greater than 0.0173 s^-1 at 340 degree C. The overall reaction could occur as a single elementary step. The activation energy for the reaction cannot be determined without additional data. The rate-determining step for the reaction could involve a bimolecular collision between two PH3 molecules.

Explanation / Answer

false

false

true

false

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