1 Why do ice cubes shrink and become rounded if left in the freezer for a...
1 Why do ice cubes shrink and become rounded if left in the freezer for a long time?
2 At the triple point of water, ice, liquid water, and water vapor can all exist at the same time. Compare the kinetic energy and total energy of the molecules of ice, liquid water and water vapor at the triple point.
Homework Answers
1) the shrinking of ice is due to the process of sublimation. sublimation is the phenomenon of conversion of solid directly to gaseous phase. eventhough ice is in zero degree celcius , it is in low humidity conbditionss.the liquid molecules in the surface of ice combines with gaseous molecules in the air . this process cause shrinking of ice cubes.
2)water reaches its triple point at just above freezing point 0.010C and at a pressure of 0.006atm. at pressures below triple point ice sublimes to water vapour. at the triple point all phases will have same number of molecules. the individyal molecules can enter to solid from liquid and vice versa.
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