Kinetics

What is reaction rate?

The change in concentration of a reactant or product per unit time

What is the equation for instantaneous rate

-\frac{d\left\lbrack conc\right\rbrack}{\differentialD t}

ie the gradient of the tangent to the rate curve at a specific point

Take the case 2NO₂ → 2NO + O₂, what is the rate relationship

Rate=-\frac{d\left\lbrack NO2\right\rbrack}{\differentialD t}=\frac{d\left\lbrack NO\right\rbrack}{\differentialD t}=2\frac{d\left\lbrack O2\right\rbrace}{\differentialD t}

General formula for the relation of rates

How do the value and units of rate change?

Value of rate will depend on how the rate is defined

Units of rate are always concentration per unit time