CHM1011 – Exam Questions With Complete Solutions

Kinetics correct answer: The rate or speed of a reaction. A rapid reaction does not mean it goes to completion Equilibrium correct answer: The extent of a reaction Why is the rate of reaction important? correct answer: Industrial, biochemical, environmental, health What sort of factors effect the rate of a reaction? correct answer: Concentration of reactants, physical states of reactants, temperature, the use of a catalyst Effect of concentration correct answer: RATE OF REACTION INCREASES AS CONCENTRATION INCREASES. The more reactant particles that collide, the more often a reaction between them can occur. Effect of physical state correct answer: LIQUIDS AND SOLIDS INCREASE RATE OF REACTION. Greater surface area helps increase the reaction, solids have less surface area. Effect of temperature correct answer: INCREASE TEMPERATURE, INCREASE RATE OF REACTION. This increases the kinetic energy, so particles move faster and collide more frequently. Effect of catalyst correct answer: INCREASES THE RATE OF REACTION. They are highly selective, and usually only accelerate only one of several possible reactions. Rate of reaction formula correct answer: - Δ[