Question

Liquid - Gaseous state
Water
Liquid
remains constant
1. This constant
e ice converts into
Eg point of ice.
on of solid pbase to
heat energy, but its
ncrease. This heat
Eakening the bonds
lecules in the solid
aid phase. The heat
--nornture
(0.0) 724 6
1 na 1a 6 18 20 23 22 8 30 32 34
Time (Minutes)
Ice+ Water

: Exercise :
1. What is indicated by time - temperature graph in above activity?
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Answer 1

Answer:

A time-temperature graph has temperature on the vertical y-axis and time along the horizontal x-axis. Temperature will be in degree Celsius (C) or degrees Kelvin (K). Fahrenheit temperatures are not used in science today. Kelvin has the advantage of measuring absolute temperature with 0 K being the lowest temperature attainable. A degree K is the same as a degree C.

By recording time and temperature, you can easily figure out the “degrees per minute” that the middle is heating up and make a fairly accurate prediction of when it will be done.