A. convection
B. conduction
C. radiation
D. evaporation
Correct Answer:
Option A – convection
The main reason for making the cover of a vacuum flask airtight is to prevent heat loss by?
![Ice of mass 50g at 0°C was completely melted by 70% of the total heat energy supplied. Calculate the total heat energy supplied [Specific latent heat of fusion of ice = 336Jg−1]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "Ice of mass 50g at 0°C was completely melted by 70% of the total heat energy supplied. Calculate the total heat energy supplied [Specific latent heat of fusion of ice = 336Jg−1]")
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