# Which of the following procedures will allow the student to determine the rate constant, for the reaction? [closed]

Is the answer A or B because C and D won't give me the rate constant?

• C or D won't give you the rate constant. – Ivan Neretin May 6 '19 at 6:00
• C will only let you identify the order of reaction of X in this reaction and D will change the rate constant as the temperature change – Simon-Nail-It May 6 '19 at 6:18
• Tty to develop an straight equation equation from the rate equation – Simon-Nail-It May 6 '19 at 6:29

From the graph it is clear that the reaction follows first order kinetics ($$\ce{[X] = [X_0] e^{-kt}}$$) where $$[X_0]$$ is initial concentration. Taking $$ln$$ on both sides we get $$\ce{ln[X] = ln[X_0] +(-kt)}$$ So if you plot a graph between $$ln[X]$$ and $$t$$ then you have the magnitude of slope as k ie the equilibrium constant. So correct answer is A.