11 - solution chemistry

Question 1

unique property of water mpt and bpt

Answer 1

presence of hydrogen bonding, relatively stronger IMF compared to other molecules, similar mass means requires more energy to break molecules apart, state change

Question 2

unique property of water density in solid and liquid phases

Answer 2

less dense in solid than liquid, ice floats. molecules packed more closely in liquid as h bonds are constantly breaking and reforming so higher density/ fixed h - bonds in ice means molecules further apart, less dense

Question 3

surface tension definition

Answer 3

Measure of the surface of a liquid resisting an external force

Question 4

unique property of water surface tension

Answer 4

imbalance of forces on outside layer means molecules are more tightly packed and bonded, more resistant to external forces

Question 5

unique property of water high specific heat capacity

Answer 5

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