What is the overall reaction order?
\( 2NO(g) + Cl_2(g) \rightarrow 2NOCl(g) \)
Data:
Exp 1: \( [NO] = 0.10 \, mol \, dm^{-3} \), \( [Cl_2] = 0.10 \, mol \, dm^{-3} \), Rate = \( 2.5 \times 10^{-6} \, mol \, dm^{-3} \, s^{-1} \)
Exp 2: \( [NO] = 0.10 \, mol \, dm^{-3} \), \( [Cl_2] = 0.20 \, mol \, dm^{-3} \), Rate = \( 5.0 \times 10^{-6} \, mol \, dm^{-3} \, s^{-1} \)
Exp 3: \( [NO] = 0.20 \, mol \, dm^{-3} \), \( [Cl_2] = 0.10 \, mol \, dm^{-3} \), Rate = \( 10.0 \times 10^{-6} \, mol \, dm^{-3} \, s^{-1} \)