Experimentally Determining of the Order of a Chemical Reaction
The rate of a chemical reaction depends upon the rate constant and the concentrations of the reagents and products each raised to a power, the…
Chemistry
Experimental Arrhenius Plot: Mathematical Example
k = Ae-(Ea/RT) Firstly, using the following experimental data for the rate constants and temperatures draw a graph of ln(k/s-1) versus (1/T) x (103 K)…
Explain Pressure Volume Experimental Data for Carbon Dioxide
The volume, V litres, of one mole of CO2 gas was measured as the pressure of p atmospheres (atm) was varied at a constant temperature…
Explain Photoelectric Experimental Results
Light of various selected frequencies v was directed at a sodium metal target inside a vacuum system. The kinetic energy of the ejected electrons EKE…
What is Radioactive Decay?
Radioactive decay is a first-order chemical reaction which follows an exponential decay in the reactant, the radioactive element. Starting with an original number of radioactive…
How Chemical Work at Constant Pressure?
Chemical Work at Constant Pressure The ability of a chemical reaction to perform work at a constant pressure is given by the Gibbs energy AG°…
Explain Nernst Equation
The following redox chemical reaction Zn(s) + Cu2+ → Zn2+ +Cu(s) can be made into an electrochemical cell to derive electrical energy, below Figure. The…
Explain Arrhenius Equation
Question 1: The rate constant k of a chemical reaction increases with the absolute temperature T. This increase follows the equation below which is called…
First Order Kinetics: Mathematical Example
Question 1: The concentration of the reactant in a first-order chemical reaction decreases with time as it is consumed to form products and the concentration…
Explain Acid Base Equilibrium
Question 1: The molar concentration of OH– ions in a certain solution is 1.04 x 10-5 mol L-1. Calculate the pOH and then the pH of…
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