Question

What is the only way that entropy can decrease in a system?(1 point) Responses If energy is created by the system. If energy is created by the system. If work is removed from the system If work is removed from the system If work is put into the system. If work is put into the system. If energy is decreased from the system. If energy is decreased from the system.
GPT-4o mini
The only way that entropy can decrease in a system is **if work is put into the system.** This is because adding work can lead to a more ordered state, thus reducing entropy.
According to the second law of thermodynamics, why is a perfectly efficient engine where no energy is lost not possible?(1 point) Responses As energy is transferred, there will always be the chaos of malfunctions, where the engine starts breaking. As energy is transferred, there will always be the chaos of malfunctions, where the engine starts breaking. As energy is transferred, there will always be the decay of the source of heat, where the source loses its energy. As energy is transferred, there will always be the decay of the source of heat, where the source loses its energy. As energy is transferred, there will always be an increase in disorder, where heat is lost to the surroundings. As energy is transferred, there will always be an increase in disorder, where heat is lost to the surroundings. As energy is transferred, there will always be an increase in order, where heat is used by the engine.