InterviewSolution
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InterviewSolution
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We can easily move our hand in cist, but to dothrough a solid block of wood, we need a Karate expertolish have space |
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Answer» we can move our hand in air. Howeverwecannotmove our handin a solid block because there are strong forces of attractions between particles in a solid and thereisno empty space between them. The molecules of a gas (air) have very large intermolecular spaces and negligible intermolecular forces . Hence we can easily move our hand in air , whereas the intermolecular spaces between the molecules of a solid are very small and intermolecular forces are very large . Hence , a lot of force is needed to separate the molecules of a solid and we need karate expert to break a block of wood we can move our hand in air. However we can't move our hand in a solid block because there are strong forces of attraction between them |
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