Reaction rate

Sci (2014) explain how stress increase each time more in life of humans. Arab J Sci makes an experiment where he test and measure in a simple way stress in the participant’s in different ways. Hence, through Stroop test the research can tested heart rate and blood pressure. The purpose of the experiment is that participants measure and control their levels of stress avoiding that in the future the will have damages in their health for stress. The experiment consist in two completely different…

Interpretation 1. Theoretical Lab Discussion This lab occurs due to enzyme kinetics, and the kinetics molecular theory. Enzyme kinetics is the study of chemical reactions that are catalysed by enzymes, and during the experiments, the reaction rate was measured by the effects of the varying conditions the substrate was in. Influence of Catalase Concentration The higher the concentration of the enzyme catalase, the function of the enzyme occurs better. As the number of disks increased, the…

A chemical reaction is the change of a molecule from one arrangement to another. Our whole bodies are made up of cells, which are chemical systems. To sustain life there must be chemical reactions all throughout the body (Barnhart and Hopper 2011). At what rate the reaction can occur is dependent on the activation energy. Activation energy is the amount of energy the reactant molecules must surpass for the reaction to occur (Mathew Bui et al. 2006). Temperature and catalysts are the most basic…

increases the rate of the chemical reaction. The results of this experiment showed how different temperatures could affect the chemical reaction between the enzyme and the hydrogen peroxide. The temperatures tested in this lab were 30, 35,40,45 Celsius, which are close to the average body temperature which is 37 Celsius. Catalase is an enzyme which breaks down hydrogen peroxide into oxygen and water. Different temperatures were measured to see the effect temperature has on the rate of the…

I. Science fair question How does temperature affect the rate at which UV beads lose their color? II. Background Research Did you know that most of the ultraviolet light produced by the Sun is blocked by the atmosphere, but some light does still reach Earth? Ultra violet light can be detected using electronic devices. Important terms that will be discussed in this paper are ultraviolet light, photochromism, chemical reactions, and absolute zero. Relating to electromagnetic radiation having…

have shown inconsistencies within the data. This is evidently shown in figure 2, where the reaction rate at 2°C was 88 mL/min, whereas the reaction rate at 32°C was 83.5 mL/min. The reaction rate was lower at 32°C compared to 2°C which is biologically incorrect. As the optimum temperature of an enzyme is 37°C, the closest temperature recorded to that temperature was 32°C. At this temperature, the reaction rate decreased instead of gradually increasing. This shows that the catalase performed best…

Temperature. Normally an increase in temperature will lead to an increase in the rate of a chemical reaction, but the reaction rate will decline after it passes the optimum temperature, meaning the temperature at which the activity of the enzyme and the rate of the reaction is the highest. Any temperature higher than optimal will chance denaturing (loss of biological function) the enzyme and lowering the reaction rate. Alkaline Phosphatase is an enzyme found in the human body and as such is…

• The temperature in the room may have altered. A dependent variable is a variable you do not change during an experiment. Instead, it changes as a result of other changes you make. The dependent variables in my experiment were: • The rate of reaction. • The volume of sodium thiosulphate. The volume of sodium thiosulphate will remain unaffected throughout the whole experiment, Where as I will be changing the concentrations of hydrochloric acid. The volume of sodium thiosulphate will…

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A. Carbon dioxide (CO2) B. Sodium chloride (NaCl) C. Magnesium oxide (MgO) D. Manganese dioxide (MnO2) 2. If the temperature of a reaction is decreased, what effect will this have on the rate of reaction? A. It will have no effect. B. The reaction will stop. C. The rate of reaction will increase. D. The rate of reaction will decrease. 3. Given the equilibrium reaction in a closed system. What will be the result of an increase in temperature? H2(g) + I2(g) + heat → 2 HI(g). A. The equilibrium…