Question

The table shows the concentration of a reactant in the reaction mixture over a period of time.

Answer 1

The average rate of the reaction over the first 450 seconds -2.2×10⁻³ M/s

What is speed?

Speed is defined as the rate of change of the distance moved with time. Mathematically, it can be expressed as:

Speed = distance / time

With the above idea, we can obtain the rate of the reaction as illustrated below:

How to determine the rate of the reaction over the first 45os

• Change in concentration = 0.8 - 1.8 = -1 M
• Time = 450 s
• Speed = ?

Rate = Change in concentration / time

Rate = -1 / 450

Rate = -2.2×10⁻³ M/s

Learn more about speed:

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