It shows how the temperature of a substance
changes with time, as it is cooled from a gas to a
solid. Here is the cooling curve for one substance:
gas
Temperature/°C
liquid
-15-+
-
solid
Time
a What is the state of the substance at room
temperature (20°C)?
b Use the list of melting and boiling points on
page 5 to identify the substance.
c Sketch a cooling curve for pure water.
len onlain each of these
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The story ‘The Hundred Dresses-I’ is really all about teasing of Wanda being polish and having a strange name. They made fun of Wanda and made her feel inferior by asking her about her dresses. Their behaviour towards Wanda was completely undesirable as it shows racism and ragging. These are totally condemnable issues in the society which cannot be accepted.
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