Multiple Choice
Using the Arrhenius Equation, what is the rate constant (k) for the reaction of NO with F2 at a temperature of 298 K, given that the activation energy (Ea) is 6.30 kJ/mol and the frequency factor (A) is 6.00 × 10^8 M⁻¹·s⁻¹?
15. Chemical Kinetics
Arrhenius Equation
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The rate constant of a chemical reaction increased from 0.100 s⁻¹ to 3.20 s⁻¹ upon raising the temperature from 25.0 °C to 55.0 °C. Calculate the value of (1/T1 - 1/T2) in Kelvin⁻¹, where T1 is the initial temperature and T2 is the final temperature.
A
0.0030 K⁻¹
B
0.0020 K⁻¹
C
0.0015 K⁻¹
D
0.0040 K⁻¹
Verified step by step guidance1
Convert the initial temperature (T1) from Celsius to Kelvin by adding 273.15 to 25.0 °C.
Convert the final temperature (T2) from Celsius to Kelvin by adding 273.15 to 55.0 °C.
Calculate the reciprocal of the initial temperature in Kelvin, which is 1/T1.
Calculate the reciprocal of the final temperature in Kelvin, which is 1/T2.
Subtract the reciprocal of the final temperature from the reciprocal of the initial temperature to find (1/T1 - 1/T2) in Kelvin⁻¹.
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