Air & Combustion

Topic Objectives

By the end of this topic, the learner should be able to:

• State the percentage combustion of air by volume;
• Carry out simple experiments to show that oxygen is the active part of air;
• Determine the percentage of oxygen in air using suitable methods;
• Describe the combustion of specified elements in air and oxygen and name the products;
• Explain how liquefied air can be separated into its components by fractional distillation;
• Carry out experiments to investigate the conditions for rusting, and state the composition of rust;
• State methods of preventing rusting;
• Prepare oxygen, investigate its properties and state its uses;
• Arrange some elements in order of their reactivity with oxygen using experimental data;
• Classify the products of burning elements in oxygen either as acidic or basic;
• State pollution effects due to burning of substances in air;
• State the uses of reactivity series.