assignment discusses chemical kinetics by determining the rate and average value for rate constant based on experimental values given. The orders of the reactants can only be determined experimentally‚ so we must look at how the concentration of the reactants affect the instantaneous initial rate while holding the concentration of the other reactant constant. In this reaction‚ the overall reaction order for the rate law is third because the order for A is second and the order for B is first. For A
Premium Chemical reaction Reaction rate Rate equation
three stages are Glycolysis‚ Citric cycle‚ and electron transport. • What is the role of glycolysis? Include the reactants and the products. Where does it occur? Glycolysis splits the sugar that goes in to the cell. Then in converts in to energy the cell need. It does not need oxygen to occur. • What is the role of the citric acid cycle? Include the reactants and the products. Where does it occur? Citric acid occurs after glycolysis process‚ high energy electrons are
Premium Adenosine triphosphate Photosynthesis Cellular respiration
Data collection and processing Qualitative observation Before * Blue solution of copper sulfate * Grey zinc powder During * Blue color solution changes to greyish black * Heat is given out‚ so the surroundings become hotter. After * Grey powder remains on the sides of the cup * Precipitate formed at the bottom of the cup List of chemicals and apparatus used Chemicals used Copper sulfate solution‚ 1 mol dm-3 25g of zinc powder Apparatus needed
Premium Thermodynamics Temperature Specific heat capacity
Increasing the number of collisions speeds up the reaction rate. The more reactant molecules there are colliding‚ the faster the reaction will be • Putting more particles into a fixed volume increases the concentration of reactants and the frequency of collision. • Increased collision frequency leads to a higher reaction rate. C. Particle Size [546] • The total Surface Area [SA] of a solid or liquid reactant affects the reaction rate. • Reaction depends on collisions.
Premium Chemical reaction
How reaction rate varies with sodium thiosulphate concentration Background information Sodium thiosulphate and hydrochloric acid are both colourless liquids‚ when the two reactants are reacted together they produce sulphur. The sulphur that is produced from the reaction changes the solution to yellow and cloudy‚ this is a precipitation reaction‚ where a two solutions react and a solid forms in the solution‚ the solid is said to precipitate out. Some reactions will occur quickly such as fireworks
Premium Chemical reaction Rate equation Chemical kinetics
Does concentration affect the speed of chemical reactions? Problem: We are proving that “concentration” (the amount of reactants) is one of the things that can affect the speed of chemical reactions. We are also finding a way to keep the lid on the film canister for the longest period of time. We are using vinegar and water as reactants and changing the concentration every time to see the difference between the rates of reactions speed. Materials: - 1 graduated cylinder - 1 film canister
Premium Chemical reaction Chemical engineering Reaction rate
Equilibrium: Why are mountain climbers at an increased risk of hypoxia? Equilibrium is a state in which both reactants and products are present in a concentration. An equilibrium reaction is a reversible reaction that can move both forward and backwards direction and be equal to each other. Equilibrium is reached when there are no further changes in the concentration of both the product and reactant. Le Chaterlier’s Principle states that when equilibrium is disturbed‚ the rate of the forward and reverse
Premium Chemical reaction Oxygen Chemistry
concentration of the reactants and products stop changing1. When this condition was met‚ there was no change in the proportions of the various compounds involved‚ and the reaction ceases to progress. The equilibrium state has a dynamic – that is‚ active – nature being characterized by the simultaneous and continuous formation of products from the reactants and reactants from the products2. But these simultaneous reactions do not necessarily follow that the concentrations of the reactants is equal to that
Premium Chemical reaction Chemistry Chemical equilibrium
bioenergetics‚ whereas chemical engineers apply thermochemistry to design manufacturing plants. Chemical reactions involve the conversion of a set of substances collectively referred to as "reactants" to a set of substances collectively referred to as "products." In the following balanced chemical reaction the reactants are gaseous methane‚ CH 4 (g)‚ and gaseous molecular oxygen‚ O 2 (g)‚ and the products are gaseous carbon dioxide‚ CO 2 (g)‚ and liquid water H 2 O(l): CH 4 (g) + 2 O 2 (g) → CO 2 (g)
Free Thermodynamics Energy
equation of the reaction of hydrogen peroxide and iodide ions. This will be achieved by using an iodine clock method and colorimetric analysis. 2. Draw a graph of rate against concentration for each reactant (Hydrogen peroxide‚ potassium iodide and H+ ions). 3. Finding the order for each reactant 4. Finding the rate-determining step. 5. Proposing a mechanism for the reaction. 6. Using Arrhenius’ equation to find the activation enthalpy. Background The basic reaction for this can be illustrated
Free Chemical reaction Chemical kinetics