A student investigated the kinetics of the gas-phase decomposition of sulfuryl chloride, \(\text{SO}_2\text{Cl}_2\text{(g)}\), at a constant temperature according to the following equation:

\[\text{SO}_2\text{Cl}_2\text{(g)} \rightarrow \text{SO}_2\text{(g)} + \text{Cl}_2\text{(g)}\]

The student measured the concentration of \(\text{SO}_2\text{Cl}_2\) at various times during the reaction and plotted \(\ln[\text{SO}_2\text{Cl}_2]\) as a function of time, as shown in the graph below. The line of best fit has the equation \(y = -0.0040\,x - 1.60\), where \(y = \ln[\text{SO}_2\text{Cl}_2]\) and \(x\) is time in seconds.

Based on the graph, what is the order of the reaction with respect to \(\text{SO}_2\text{Cl}_2\) and the value of the rate constant, \(k\)?