InterviewSolution
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InterviewSolution
| 1. |
Discuss the change in energy and arrangement of molecules on increasing the temperature of ice from `=5^(@)C " to " 10^(@)C` at 1 atm pressure. |
| Answer» On heating ice at `-5^(@)C,` its temperature increases up to `0^(@)C,` i.e, the kinetic energy of the molecules increases. At `0^(@)C`, the ice starts to melt . During this period the energy supplied is taken up to increase the potential energy of the molecules and the arrangement of molecules changes. Once the ice cube melts, the heat energy supplied is again used to increase the temperature of water due to increase in kinetic energy of the molecules. However from `0^(@)C " to " 4^(@)C`, the molecules of water come closer and above `4^(@)C` the molecules move farther away. | |