$2 \mathrm{HI} \longrightarrow \mathrm{H}_2+\mathrm{I}_2$

$\mathrm{H}_2+\mathrm{Br}_2 \xrightarrow[\Delta]{ } 2 \mathrm{HBr}$

$2 \mathrm{~N}_2 \mathrm{O}_5 \longrightarrow 4 \mathrm{NO}_2+\mathrm{O}_2$

$\mathrm{H}_2+\mathrm{Cl}_2 \xrightarrow{h \nu} 2 \mathrm{HCl}$

Plot of $[A]$ vs " $\frac{1}{t}$ " will be straight line

Plot of $\frac{1}{[A]} v s t^2$ will be a straight line

Plot of $\ln [A]$ vs $t$ will be a straight line

Plot of $[A] v s t^2$ will be a straight line

$-15 \mathrm{~kJ} / \mathrm{mol}$

$-1.5 \mathrm{~kJ} / \mathrm{mol}$

$-3.45 \mathrm{~kJ} / \mathrm{mol}$

$-34.5 \mathrm{~kJ} / \mathrm{mol}$

3

2

1

0