.When a graph is plotted betweenon x-axis and log k on y-axis a straight lineis obtained with a negative slope which has two end in
Correct answer: A. (a) I and II quadrant
- A. (a) I and II quadrant
- B. (b) II and III quadrant
- C. C)III and IV quadrant
- D. (d) II and IV quadrant
Explanation
The correct answer for the location of the straight line on the graph between 1/T on the x-axis and log k on the y-axis is:(a) I and II quadrantHere's why the other options are incorrect:(b) II and III quadrant: The slope of the line is negative, meaning as 1/T (inverse of temperature) increases, log k (rate constant) decreases. So, the line can't be in the III quadrant where both x and y values are negative.(c) III and IV quadrant: As explained above, the line can't be in the III quadrant with both x and y negative. In the IV quadrant, both x and y are positive, but with a negative slope, the line cannot reach this quadrant as log k (y-axis) keeps decreasing as 1/T (x-axis) increases.(d) II and IV quadrant: Again, the negative slope and decreasing log k with increasing 1/T rule out the IV quadrant. Therefore, the line can only be in the I and II quadrant where both x and y can be positive or only x is positive (I quadrant) while y (log k) remains negative (II quadrant).
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Reaction Kinetics
Reaction kinetics relates reaction rate to concentration, temperature, surface area and catalysts. Questions cover rate laws, reaction order, rate constants, activation energy and the activated complex, including how a catalyst lowers the activation energy without changing the overall energy change or equilibrium position.
Practise Reaction Kinetics
573 free Reaction Kinetics MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Reaction Kinetics questions
9.In rate expression, the concentration of reactants is negative. It shows
Spontaneous reactions are
The value of activation energy is primarily determined by
12.Rate of disappearance of reactant is equal to
13.Rate of reaction, when concentration of reactants are taken as unity is called
14.Order of reaction of N2O5→2N2O5+ O2