Multiple choice

In thermos flask, tea remains hot for very longtime because the flask shows _________.

  1. isothermal process

  2. adiabatic process

  3. isobaric process

  4. isochoric process
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The process that occurs without gain or loss of heat is called adiabatic process. The inner container is covered with an outer cover with no air in between. So, there is no conduction of heat from outside to the inner layer.

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