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Standard XII

Chemistry

Arrhenius Equation

For a n th or...

Question

For a $n^{t h}$ order reaction A→ Product, $t_{1 / 2}$ varies with concentration of A as shown in graph
What is value of n ?

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Solution

We can write the relation of the y-axis with the x-axis in the form $y = m x + c$ since the graph shows a straight line.
So, $l o g t_{1 / 2} = l o g [A]_{0} - l o g 2 k$
$\Rightarrow t_{1 / 2} = \frac{[A]_{0}}{2 k}$
So $t_{\frac{1}{2}}$ is independent of concentration of A. Hence, the value of n is 0.

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For a nth order reaction A→ Product, t1/2 varies with concentration of A as shown in graph What is value of n ?

We can write the relation of the y-axis with the x-axis in the form y=mx+c since the graph shows a straight line. So, log t1/2=log[A]0−log 2k ⇒t1/2=[A]02k So t12 is independent of concentration of A. Hence, the value of n is 0.

For a $n^{t h}$ order reaction A→ Product, $t_{1 / 2}$ varies with concentration of A as shown in graph
What is value of n ?