Chemistry in Motion - Bewerkingsoverzicht

R0804512: /* Examenvragen */

2024-01-16T18:35:06Z

Examenvragen

← Oudere versie		Versie van 16 jan 2024 20:35
Regel 6:		Regel 6:

	==Examenvragen==		==Examenvragen==

			===12th of January 2024, Afternoon===
			=====Loreau's part=====

			Given a Sn1 reaction M-A + B -> M + B + A -> M-B

			#Give the order of the reaction and the units of the rate coefficient (he wants you to change your answer depending on the pressure)
			#Give rate law and what is the dependence on the concentration of B
			#Draw the energy profile of this reaction, and describe the geometry of the transition state
			#given eryings equation describe the entropy and enthalpy profile of the transition state
			#what method can be used to evaluate the rate coefficient (he just expects you to talk about all the methods)

			What are the advantages and disadvantages of quantum methods and (explain how to obtain the rate coefficient, compare TD and TI)

			Compare the rate coefficients for Hard sphere, TST and Arrhenius equation (he also wants you to know how they are obtained and explain the different parts of the equations)

			====Clays' part====

			Show how you can derive Einstein equation from Fick's law and Langevin equation

			Given is the Master Equation of Fluctuation Theory, for both P(delta P, delta S) and P(delta T, delta V). Derive the amplitude of fluctuations for one of the four possible fluctuations.

	===12th of January 2024, Morning===		===12th of January 2024, Morning===

	=====Loreau's part=====		=====Loreau's part=====

	Given a reaction A+B -> C+~~D, elementary, exothermic~~, Figure of ln(k(T) w.r.t. 1/T		Given a reaction OH+CH3OH -> CH3O+H2O, Figure of ln(k(T) w.r.t. 1/T
	# Does this reaction follow Arrhenius behaviour.		# Does this reaction follow Arrhenius behaviour.
	# Why might this reaction deviate from Arrhenius behaviour.		# Why might this reaction deviate from Arrhenius behaviour.
	# Which methods could we use to predict k(T).		# Which methods could we use to predict k(T).
	# Assume we use TST what would we need to determine k(T).		# Assume we use TST what would we need to determine k(T).
	# What are the ~~drawbacks~~ when using TST.		# What are the limitations when using TST.

	Lindemann’s theory about unimolecular reaction.		Lindemann’s theory about unimolecular reaction.
Regel 21:		Regel 43:
	# What is the problem of this theory and how to fix it?		# What is the problem of this theory and how to fix it?

	====~~Cley~~'s part====		====Clays' part====

	# Prove that for stability conditions in terms of entropy can be related to a minimum in "energy".		# Prove that for stability conditions in terms of entropy can be related to a minimum in "energy".

R0808150: /* Cley's part */

2024-01-15T09:10:12Z

Cley's part

← Oudere versie		Versie van 15 jan 2024 11:10
Regel 24:		Regel 24:

	# Prove that for stability conditions in terms of entropy can be related to a minimum in "energy".		# Prove that for stability conditions in terms of entropy can be related to a minimum in "energy".
	# ~~Explain how we get from~~ the ~~entropy maximum~~ of the ~~second law~~ of ~~thermodynamics to~~ the ~~minimum in energy. Explain what role~~ fluctuations ~~play here and explain the probability~~.		# Given is the Master Equation of Fluctuation Theory, for both P(delta P, delta S) and P(delta T, delta V). Derive the amplitude of fluctuations for one of the four possible fluctuations.

	===29th August 2023===		===29th August 2023===

R0808150 op 15 jan 2024 om 09:09

2024-01-15T09:09:26Z

@@ Regel 6: / Regel 6: @@
 ==Examenvragen==
 ===29th August  2023===
 ====Advanced Chemical Kinetics====

R0804230: /* 29th August 2023 */

2024-01-11T19:40:26Z

29th August 2023

← Oudere versie		Versie van 11 jan 2024 21:40
Regel 24:		Regel 24:
	# Prove that for stability conditions in terms of entropy can be related to a minimum in "energy".		# Prove that for stability conditions in terms of entropy can be related to a minimum in "energy".
	# Explain the relation between Fick's laws, Langevin equation and the Einstein equation.		# Explain the relation between Fick's laws, Langevin equation and the Einstein equation.

	===13th January 2023===		===13th January 2023===
	====Advanced Chemical Kinetics====		====Advanced Chemical Kinetics====

R0862968: /* Examenvragen */

2023-09-08T06:28:27Z

Examenvragen

@@ Regel 6: / Regel 6: @@
 ==Examenvragen==
 ===13th January 2023===
 ====Advanced Chemical Kinetics====

R0804230: /* First question */

2023-07-28T14:10:28Z

First question

← Oudere versie		Versie van 28 jul 2023 16:10
Regel 11:		Regel 11:
	# Give the rate constant described by TST and explain the different elements.		# Give the rate constant described by TST and explain the different elements.
	# Given are the expressions for Qrot and Qtrans. Qelec and Qvib can be neglected. Describe the temperature dependence for the following reactions:		# Given are the expressions for Qrot and Qtrans. Qelec and Qvib can be neglected. Describe the temperature dependence for the following reactions:
	#* F + H2 --> HF + F		#* F + H2 --> HF + H
	#* C2H4 + HCl --> C2H5Cl		#* C2H4 + HCl --> C2H5Cl
	# What becomes the temperature dependence if we include Qvib.		# What becomes the temperature dependence if we include Qvib.

R0804230: /* Advanced Chemical Kinetics */

2023-01-14T11:30:38Z

Advanced Chemical Kinetics

← Oudere versie		Versie van 14 jan 2023 13:30
Regel 11:		Regel 11:
	# Give the rate constant described by TST and explain the different elements.		# Give the rate constant described by TST and explain the different elements.
	# Given are the expressions for Qrot and Qtrans. Qelec and Qvib can be neglected. Describe the temperature dependence for the following reactions:		# Given are the expressions for Qrot and Qtrans. Qelec and Qvib can be neglected. Describe the temperature dependence for the following reactions:
	* F + H2 --> HF + F		#* F + H2 --> HF + F
	* C2H4 + HCl --> C2H5Cl		#* C2H4 + HCl --> C2H5Cl
	# What becomes the temperature dependence if we include Qvib.		# What becomes the temperature dependence if we include Qvib.
	# Compare with the result obtained from the Arrhenius equation (A in Arrhenius equation is obtained via experiment whereas with TST the pre-exp. factor is obtained via direct calculation)		# Compare with the result obtained from the Arrhenius equation (A in Arrhenius equation is obtained via experiment whereas with TST the pre-exp. factor is obtained via direct calculation)

R0804230: /* Advanced Chemical Kinetics */

2023-01-13T20:48:18Z

Advanced Chemical Kinetics

← Oudere versie		Versie van 13 jan 2023 22:48
Regel 10:		Regel 10:
	=====First question=====		=====First question=====
	# Give the rate constant described by TST and explain the different elements.		# Give the rate constant described by TST and explain the different elements.
	# Given are the expressions for Qrot and Qtrans. Qelec and Qvib can be neglected. Describe the		# Given are the expressions for Qrot and Qtrans. Qelec and Qvib can be neglected. Describe the temperature dependence for the following reactions:
	temperature dependence for the following reactions:
	* F + H2 --> HF + F		* F + H2 --> HF + F
	* C2H4 + HCl --> C2H5Cl		* C2H4 + HCl --> C2H5Cl

R0804230: /* Second question */

2023-01-13T13:45:13Z

Second question

← Oudere versie		Versie van 13 jan 2023 15:45
Regel 19:		Regel 19:

	=====Second question=====		=====Second question=====
	# Unimolecular reaction that shows first order behavior at high pressure and second order behavior at low pressure. ~~Give~~ the reaction rates and the dimensions of rate ~~constant~~ for these two cases.		# Unimolecular reaction that shows first order behavior at high pressure and second order behavior at low pressure. Write down the reaction rates and the dimensions of the rate constants for these two cases.
	# Prove qualitatively and quantitative the rates at high and low pressure.		# Prove qualitatively and quantitative the rates at high and low pressure.

R0804230: /* Second question */

2023-01-13T13:43:20Z

Second question

← Oudere versie		Versie van 13 jan 2023 15:43
Regel 19:		Regel 19:

	=====Second question=====		=====Second question=====
	# Unimolecular reaction that shows first order behavior ~~for~~ high pressure and second order behavior ~~for~~ low pressure. Give the reaction rates and the dimensions of rate constant for these two cases.		# Unimolecular reaction that shows first order behavior at high pressure and second order behavior at low pressure. Give the reaction rates and the dimensions of rate constant for these two cases.
	# Prove qualitatively and quantitative the rates at high and low pressure.		# Prove qualitatively and quantitative the rates at high and low pressure.

	====Dynamics of Chemical and Biochemical Systems====		====Dynamics of Chemical and Biochemical Systems====
	# Given is the Master Equation of Fluctuation Theory, for both P(delta P, delta S) and P(delta T, delta V). Derive the amplitude of fluctuations for one of the four possible fluctuations.		# Given is the Master Equation of Fluctuation Theory, for both P(delta P, delta S) and P(delta T, delta V). Derive the amplitude of fluctuations for one of the four possible fluctuations.