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Chemistry /
Reaction Kinetics /
Quiz 1

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NCAT Practice Test - Practice Test - Chemistry - Reaction Kinetics Quiz

Attempt 10 MCQs on NCAT Practice Test - Practice Test - Chemistry - Reaction Kinetics | Quiz 1

1. What does chemical kinetics study?

Rates of reactions
Equilibrium constants
Thermodynamics
Electrochemistry

2. What is the definition of reaction rate?

Change in concentration per unit time
Change in temperature per unit time
Change in pressure per unit time
Change in volume per unit time

3. What is the general form of a rate equation?

Rate = k[A]^x[B]^y
Rate = k[A][B]
Rate = k[A]+[B]
Rate = k[A]/[B]

4. What is the term for rate calculated over a finite time interval?

Average rate
Instantaneous rate
Initial rate
Final rate

5. How is instantaneous rate determined graphically?

Slope of tangent
Slope of secant
Area under curve
Intercept

6. What are the SI units of reaction rate?

mol L^{-1} s^{-1}
mol L^{-1}
s^{-1}
mol s^{-1}

7. Which expression correctly represents the rate for 2NO + O2 -> 2NO2?

Rate = -(1/2)d[NO]/dt
Rate = -d[O2]/dt
Rate = (1/2)d[NO2]/dt
All of these

8. Which method is used to determine rate laws by measuring rates at t=0?

Initial rate method
Integrated rate method
Half-life method
Activation energy method

9. What is the sign convention for reaction rate?

Always positive
Always negative
Zero
Depends on direction

10. Which techniques can be used to measure reaction rates?

Spectrophotometry
Conductometry
Titration
All of these

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Instructions: Select one answer per question. After submitting, you will see your score, correct answers, and explanations.

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