The Maxwell-Boltzmann Distribution

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Introduction In chemistry, catalyst is a substance which increases the rate of reaction with itself does not combine in reaction. The aim of this essay is researching more about catalyst, for instant how does catalyst work and the example of catalyst. Also, this research might useful for science international foundation students for support revision. First of all, this essay will describe Maxwell Boltzmann distribution diagram and give the meaning of collision theory, then it will discuss on Activation Energy. After that, activation complex will be explained using enthalpy diagram and catalyst pathway will be focused. Following this, there will be a describing about homogeneous and heterogeneous catalysts, also their own mechanisms and examples. Lastly, this essay will represent the catalytically poisoning. Discussion The Maxwell-Boltzmann Distribution According to Webchem(2005) the Kinetic energy of atoms and molecules can be found using formula Ke=1/2mv2, where m = mass and v= velocity. It can see that their kinetic energy depend on velocity, due to all of particles have a same mass. In the mixture of moving molecule, there are low particles which have very low energy, and also very fast particles which have high energy, as well as most of particles ’s speed are nearly average. However, there is no limit of energy and energy equals zero, including there are not many particles which have much energy, is shown in the figure1. Figure 1: Collision theory From the figure1, there is an activation energy which is a minimum kinetic energy that necessary for particles to be participating of the reaction. According to (Ltd., 2014)Occurrence of chemical reaction requires collision of particles which ha... ... middle of paper ... ...ontentid=1779 [Accessed 3 April 2014]. Clark, J., 2002. TYPES OF CATALYSIS. [Online] Available at: http://www.chemguide.co.uk/physical/catalysis/introduction.html [Accessed 3 April 2014]. Ltd., T. S. R. G., 2014. Revision:Collision theory. [Online] Available at: http://www.thestudentroom.co.uk/wiki/revision:collision_theory [Accessed 31 March 2014]. Matthey, J., n.d. Johnson Matthey Catalysts. [Online] Available at: http://resources.schoolscience.co.uk/johnsonmatthey/page4.htm [Accessed 2 April 2014]. University, P., n.d. Activation energy. [Online] Available at: http://www.princeton.edu/~achaney/tmve/wiki100k/docs/Activation_energy.html [Accessed 1 April 2014]. Webchem, 2005. The Maxwell-Boltzmann Distribution. [Online] Available at: http://www.webchem.net/notes/how_far/kinetics/maxwell_boltzmann.htm#The Maxwell-Boltzmann Distribution [Accessed 30 March 2014].
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