# Problem: In the hydrogenation of ethylene using a nickel catalyst, the initial concentration of ethylene is 1.55 mol . L-1 and its rate constant (k) is 0.0014 mol . L-1 . s-1.Determine the rate of reaction if it follows a zero-order reaction mechanism. Express your answer to two significant figures and include the appropriate units.

###### FREE Expert Solution

We're asked to determine the rate of reaction of the hydrogenation of ethylene if it follows a zero-order reaction mechanism:

Recall that the rate law only focuses on the reactant concentrations and has a general form of:

k = rate constant
A & B = reactants
x & y = reactant orders

For a zero-order mechanism, reactant orders = 0, which means:

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###### Problem Details

In the hydrogenation of ethylene using a nickel catalyst, the initial concentration of ethylene is 1.55 mol . L-1 and its rate constant (k) is 0.0014 mol . L-1 . s-1.

Determine the rate of reaction if it follows a zero-order reaction mechanism. Express your answer to two significant figures and include the appropriate units.