A thermo-flask made of stainless steel contains several tiny lead shots. If flask is quickly shaken up and down several times, the temperature of lead shots.
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A
Thermo-flask system undergoes a change under the condition that no exchange of heat takes place between the system and the surroundings, then such a process is called adiabatic process 
. But work is done on the system by shaking it against viscous force, so the temperature of the system will increase due to increase in internal energy.
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