18.5 Rate constants and temp

Question 1

what effect does increasing the temperature have on the rate?

Answer 1

increasing temp shift Boltzmann curve to the right meaning more molecules have an energy higher than the activation energy

increasing temp increases kinetic energy in particles which means they move quicker and collide more frequently

Question 2

what is the gas constant?

Answer 2

8.31

Question 3

what is the Arrhenius equation?

Answer 3

Question 4

what does the exponential factor represent?

Answer 4

the proportion of molecules with an energy exceeding the activation energy

Question 5

what is the logarithmic form of the Arrhenius equation?

Answer 5

Question 6

how can the Arrhenius equation be linked to a straight line?

Answer 6

Question 7

what is the y-axis in an Arrhenius plot?

Answer 7

ln K

Question 8

what is the x-axis in an Arrhenius plot?

Answer 8

1/T

Question 9

what is the gradient in an Arrhenius plot?

Answer 9

Question 10

what is the y-intercept in an Arrhenius plot?

Answer 10

ln A

Question 11

Arrhenius plot

Answer 11

Question 12

how do you calculate activation energy from ln K graph?

Answer 12

8.31 x -(gradient)

Question 13

how do you calculate the pre-exponential factor from a ln K graph?

Answer 13

e to the power of the y-intercept