A refrigerator transfers heat from the cold coling coils to the warm surroundings. Is it against the second law of thermodynamics? Justify your answer?

The second law of thermodynamics deals with transfer of

Asssertion: It is not possible for a system, unaided by an external agency to transfer heat from a body at lower temp. to another at a higher temp. Reason: It is not possible to violate the second law of thermodynamics.

An ideal refrigerator is used to transfer heat from a freezer at -23^@C to the surrounding at 27^@C . Its coefficient of performance is

In a refrigerator one removes heat from a lower temperature and deposits to the surroundings at a higher temperature. In this process, mechanical work has to be done, which is provided by an electric motor. If the motor is of 1kW power and heat transferred from -3^(@) C to 27^(@) C, find the heat taken out of the refrigerator per second assuming its efficiency is 50% of a perfect engine.

When an object cools down, heat is withdrawn from it. Does the entrophy of the object decrease in this process? If yes, is it a violation of the second law of thermodynamics stated in terms of increased in entrophy?

What energy percentage can be captured by the organisms of next trophic level or transfer of energy from one trophic level is according to second law of thermodynamics. The efficiency of energy transfer from herbivorous to carnivorous is

A refrigerator transfers 250 J heat per second from -23^(@)C to -25^(@)C . Find the power consumed , assuming no loss of energy.

In a refrigerator, one removes heat from a lower temperature and deposites to the surrounding at a higher temperature. In this process, machanical work has to be done, which is provided by an elecrtic motor. If the motor is of 1KV power, and heat is transferred from -3^(@)C "to" 27^(@)C , find the heat taken out of the refrigerator per second assuming its efficiency is 50% of a perfect engine.