Question

(b) Milk, Sugar and coffee kept in a
thermoflask are vigorously shook.
Explain what happens to its internal
energy.
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Answer 1

Answer:

When we shake the coffee thermos, molecules inside gain velocity and start colliding on each other. ... - During this collisions, kinetic energy is lost in the form of thermal energy. - Thus, the temperature of the coffee will rise a bit if we shake it vigorously

Answer 2

Answer:

the medium of the liquid becomes more light and intermolecular space becomes lose