The decomposition of ammonia on tungsten at 1100 degree C is zero-order, with a

Question

The decomposition of ammonia on tungsten at 1100 degree C is zero-order, with a rate constant of 2.5 times 10^-4 mole/L middot min. Write the rate expression. Calculate the rate when the concentration of ammonia is 0.080 M. At what concentration of ammonia is the rate equal to the rate constant? the greatest increase in rate for the reaction between X and Z where rate = k[X] x [Z]^2 will be caused by doubling conc. Z. b. doubling conc. X. tripling conc. X. lowering the temperature. For a reaction involving a single reactant A, the following data are obtained. Rate (mole/L middot min) 0.020 0.016 0.013 0.010 [A] 0.100 0.090 0.080 0.070 Determine the order of the reaction.

Explanation / Answer

The given statement states that it is a zero order reaction. For zero order reactions,

rate expression = -rA= kCn Here n=0

So, -rA = K where k is the rate constant.

This implies that rate is independent of concentration and the rate of reaction is always equal to rate constant at any concentration

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