Question

A kettle efficiency is 72% , the kettle uses 300 j to boil water.

A- how much of this energy ends up stored in water inside the kettle ?!

b-draw the sankey diagram.


help plss its for today

Answer 1

72% = output / 300j * 100

output = 216 joules

300j - 216j = 84joules remains in the water