RESULTS

Complete the table below with provided results (column headings in bold) and

calculations (column headings in italics).

Test # Volume Mass Initial

of

of

water,

water,

V

m =

[litres]

1

2

3

4

5

6

Mean

pv

[kg]

temp

[°C]

Temp Internal

change,

AT (K)

energy

change,

AU =

mc AT

[4]

Average Time

taken

to

boil

power

consumption

[W]

the

kettle

[s]

Work

supplied

Win [J]

Energy

losses,

LE [J]

Efficiency

n =

AU/Win