Punctuated equilibrium

Aim: This is an investigation to establish the effect of different temperatures (from 0°C -100°C) on the production of oxygen gas in a potato catalase reaction, using hydrogen peroxide as a substrate. The oxygen gas produced will be measured using a gas pressure sensor. Introduction: Enzymes are proteins, known as biological catalysts that increase the rate of reaction in a biochemical reaction without being chemically altered. The human body consists of various different types of enzymes,…

Introduction Equilibrium is the concept that in a chemical reaction where both the forward and reverse reactions occur, equilibrium is reached when both reactions are occurring at the same rate, thus once a reaction is at equilibria both the forward and reverse reactions are occurring at the same rate. For a given Chemical Equilibrium at a given temperature, keq can be calculated that will be constant no matter the initial values of the reactants and products. For a reaction: the equilibrium…

his work in mathematics. While Nash is at a bar with some of his fellow students, they try to come up with a strategy to talk to some woman there. As they discuss some possible approaches, Nash creates an idea, which becomes known as the Nash Equilibrium and publishes a piece on it. This game theory basically states that if there are two people in a situation and one person has taken the other person's perspective into account and is a making the best decision that they can; and the second…

completely dissociate in water. Some of them partially dissociates and creates a dynamic equilibrium due to the instances when their ions recombine to form the original salts. An example of this is potassium hydrogen tartrate (KHC4H4O6 or KHT). When KHT is placed in water, it partially dissolves and forms K+ and HC4H4O6- ions. This reaction is shown below: KHC_4 H_4 O_6 (s)⇄ K^+ (aq)+HC_4 H_4 O_6^- (aq) (1) The equilibrium constant of reaction (1) is written as Ksp or solubility product…

above-mentioned changes has been done by John Nash and his followers who developed the concept of Game Theory and Nash Equilibrium in particular. For the purpose of this essay, the Game Theory would be defined as “study of decision-making where several players must make choices that potentially affect the interests of the other players” (Turocy and Stengel, 2001). The Nash’s equilibrium would be referred as ‘the combination…

time. The authority can control the travel time for the whole network by responding advance in an optimal way to the drivers’ selfishness. In this study, the game theory concepts are incorporated into the system optimal (for authority) and user equilibrium (drivers). Bjørnskau and Elvik (1992) admits that game theory provide better insights than traditional choice theory, in their study of traffic law enforcement and driver behaviour.…

Energy needed for life comes from the breaking or forming of chemical bonds during chemical reactions. Energy is released in the formation of bonds and energy is also released when the bonds are broken, but in both energy is required to start the chemical reaction. This energy needed to start a chemical reaction, activation energy, comes from enzymes. Enzymes (almost always proteins) are organic catalysts that help speed up the rate of reactions and allow the reactants to get the most out of the…

The aim of this experiment was to investigate which technique – out of gravimetric analysis and colourimetry – was the most appropriate and accurate method to practice when calculating the percentage yield of a reaction. When examining the data obtained from the investigation, there was evident that there were some trends in the results. For the three graphs showcasing the results for gravimetric analysis in task one and task two, there was no general pattern. This was due to the fact that in…

solely look out for their best interests or to cooperate with the other party. The scenario mostly described when dealing with the prisoner’s dilemma is two criminals who have been arrested for the same crime and are being questioned by police (Nash Equilibrium, n.d.). Each criminal is offered a lighter sentence if he testifies against the other. Their other choice is to remain silent. If the first criminal gives up the second one, the he is free to go and the second one will have a ten-year…

Potato Bubbles Introduction Our driving question for this lab was “How do changes in temperature and pH levels affect enzyme activity?” Throughout the duration of this lab, we explored enzymes and how environmental factors like pH and temperature affected enzyme activity. Enzymes are proteins that speed up chemical reactions. For this particular experiment, we studied the enzyme catalase, which is found in potatoes. Catalase reacts with hydrogen peroxide to break it down into its water and…