Question

Answer the following
a) Define convection?
b) What is radiant heat?

Answer 1

a. the process in which heat moves through a gas or a liquid as the hotter part rises and the cooler, heavier part sinks.

b. Radiant heating is a technology for heating indoor and outdoor areas. Heating by radiant heat can be observed everyday as warmth of the sunshine of the Sun can be treated as a best example for a radiant heat.

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Answer 2

Answer:

a) Convection is the circular motion that happens when warmer air or liquid — which has faster moving molecules, making it less dense — rises, while the cooler air or liquid drops down.

Explanation:

b) Radiant heat definition is - heat transmitted by radiation as contrasted with that transmitted by conduction or convection.

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