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KVPY SA Exam 2014 Question Paper
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© examsnet.com
Question : 21
Total: 80
Ice is used in a cooler in order to cool its contents. Which of the following will speed up the cooling process?
Wrap the ice in a metal foil.
Drain the water from the cooler periodically.
Put the ice as a single block.
Crush the ice.
Validate
Solution:
Surface area of Ice get increases by crushing and cooling due to ice occur due to convection process which is proportional to area.
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