a thermos flask contains milk. will there be any change in temperature of the milk, if the flask is shaken rapidly, has heat been added to it and internal energy change? Explain.
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no heat is not added to the system, rather work has been done on the system
the work done has resulted into heat energy being liberated from the system
for example, net work done by friction comes out to be negative
which means that "that" particular amount of work done has resulted into heat being released
the work done has resulted into heat energy being liberated from the system
for example, net work done by friction comes out to be negative
which means that "that" particular amount of work done has resulted into heat being released
choudharyabhishek70:
just to correct.. firstly, work is done on the system ... then internal energy of system increases...if we consider the flask to be perfectly insulated material...then only temperature of milk will increase... nothing will be felt outside...that is...no heat energy being transferred
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