Question

☆ The Substance X noumally exists in a playa
state which can flow easily but does not full
its vessal completely It also twen anhydrous
Copper Sulphate blue. When Substance x i
Cooled excesſively, it changes into a fubefance
y
which how a fixed shape as well as a
Hoved Volume if homeven the substance X i
heated strongly it change into a Seelsteince
z which has neither a fixed now a fixed
volume
a Name the substance i) x igy and a
b) What is the proces of conversion of x. into y know
& Aut which temperature X get converted into Ya
nieocene of ourysm of X into zk
لان 1
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Answer 1

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Here are the solutions >>>

(a) The substance X is water since it turns anhydrous copper sulphate blue.

The substance Y is ice since water changes to ice upon cooling.

The substance Z is water vapour since water changes to water vapour upon heating.

(b)  The process of conversion of X into Y is known as freezing.

(c ) The temperature called freezing point of water is 0°C.

(d) Water upon heating gets converted into steam (Z) and the process is known as boiling.

(e ) X gets converted into Z at its boiling point temperature. It is 100°C.

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