Question
a Flexible: can be bent into different shapes. 1 Describe four properties of metals that are important for the use illustrated opposite. (The first one has been completed for you.) heating element Heating element in a kettle. b __ __ __
Answer
4.3
(289 Votes)
Timothy
Elite · Tutor for 8 years
Answer
b) High Heat Resistance c) High Electrical Resistance d) Good Thermal Conductivity e) Corrosion Resistance
Explanation
## Step1: We are asked to describe four properties of metals used in making a heating element for a kettle, based on their importance in context of the application.## Step2: Typically used metals for heating elements are those which produce a large amount of heat even at a lower current passing through them, like Nickel or Chromium. ## Step3: The properties of these metals important for this application may be:a. High Heat Resistance: Metals such as these have a high melt point, capable of enduring high temperatures.b. High Elecrical Resistance: These metals have a highe resistance which results in high heat generation that serves as the heating aspect.c. Good Thermal Conductivity: Metals generally have high thermal conductivity, allowing heat to be transferred quickly and efficiently to the liquid in the kettle.d. Corrosion resistance: These said metals should also possess a property of being corrosion resistant in nature to ensure they do not rust or oxidise which could eventually lead to their replacement.