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 powers are called the order with respect to that compound.…

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) the reciprocal of the pure number obtained by dividing the…

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 atoms n0 at time zero, the number of radioactive atoms…

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° where K is the equilibrium constant. ΔG0 = – RT…

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 cell is called the Daniell cell and was the power…

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 the Arrhenius equation.     k = Ae-(Ea/RT) Where Ea is…

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 of [A] varies with time as follows [A] = [A]0…

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 the solution. Question 2: Death occurs if the pH of human…