Consecutive Chemical Reactions: the Steady State Approximation
[B] = [A]0 [k1 /(k2 – k1) (e-k1t – e-k2t) By consideration of each of the terms in the equation show that if k2 is…
Chemistry
Describe Consecutive Chemical Reactions
Two chemical reactions consecutively follow on from one another. Consecutive reactions are generally very common in biochemistry and organic chemistry. K1 k2 A → B…
Explain Differentiation of the Arrhenius Equation
Arrhenius equation is used to calculate the rate of a reaction. It is an important part of chemical kinetics. It helps in understanding the effect…
How to Change in pH?
The pH of a solution in which the hydrogen ion concentration is [H] is defined by: pH = – log[H+] Firstly, show that d(pH)/d[H+] arising…
Intermolecular Interactions: Mathematical Solution
V = – 4 ε [(σ/r)6 – (σ/r)12] Question 1: The variables in the Lennard-Jones equation are V and r, Firstly, find the derivatives of…
Describe Intermolecular Interactions with Equation
The non-bonding interaction between two neutral atoms or two neutral molecules, their intermolecular interactions, is given by the Lennard-Jones equation. V = – 4 ε…
Measuring Rates of Chemical Reaction from Concentration Data
In a chemical reaction the concentration of a reagent [A] is found to decrease with time t as it is consumed to form products. A…
Explain Maxwell Boltzmann Distribution of Speeds of Gas Molecules
The fraction of identical molecules in a gas with speed c (ignoring the direction of the velocity) is f(c) and is given by the Maxwell…
Molecules of Gas: Mathematical Example
Question 1: Consider an N2 molecule at 298 K moving with a velocity of 515 m s-1. In the absence of any collisions, how long…
How to Calculate Vapour Pressure Data for Liquid?
The vapour pressure of the solvent above a liquid varies with temperature according to ln(p) = – [ΔHvap/ RT] + B where p is the…
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