CBSE Class 11-science Answered
explain formation of dewar flask
Asked by srivatsasubramaniam | 19 Dec, 2018, 03:44: PM
Expert Answer
Dewar flask is a kind of thermas flask which use vacuum instead of insulating material as an insulator between the wall.
It is designed to hold cryogenic liquids like nitrogen, helium which has lower boiling point than room temperature.
Answered by Ankit K | 19 Dec, 2018, 10:20: PM
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