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In kinetic study of a chemical reaction, slopes are drawn at different times in the plot of concentra-tion of reactants versus time. The magnitude of slopes with increase of time
  • a)
    remains unchanged
  • b)
    increases
  • c)
    decreases
  • d)
    increases and decreases periodically
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
In kinetic study of a chemical reaction, slopes are drawn at different...
Explanation:

Concept of Slopes in Kinetic Study:
- In a kinetic study of a chemical reaction, the concentration of reactants is plotted against time to understand the rate of reaction.
- Slopes at different times represent the rate of reaction at those specific time points.

Change in Slope Magnitude with Time:
- As the reaction progresses, the concentration of reactants decreases, leading to a decrease in the slope magnitude.
- This is because the rate of reaction decreases as the concentration of reactants decreases over time.
- Therefore, the magnitude of slopes decreases with an increase in time in the plot of concentration of reactants versus time.

Conclusion:
- In a kinetic study of a chemical reaction, the magnitude of slopes decreases with an increase in time as the reaction progresses.
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Community Answer
In kinetic study of a chemical reaction, slopes are drawn at different...
  • The definition of the (instantaneous) rate is the slope of the tangent drawn to the curve showing the variation of concentration with time. 
  • For negative slopes, the sign is changed when reporting the rate, so all reaction rates are positive.
Hence, As time increases the slope of the concentration of reactants versus time will decrease.
So, correct option is (c).
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In kinetic study of a chemical reaction, slopes are drawn at different times in the plot of concentra-tion of reactants versus time. The magnitude of slopes with increase of timea)remains unchangedb)increasesc)decreasesd)increases and decreases periodicallyCorrect answer is option 'C'. Can you explain this answer?
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