Why can’t the efficiency of the engine be not only more than 100%, but also equal to 100%?

Since Q2, the amount of heat given to the refrigerator and other surrounding objects, is always significantly greater than zero, the efficiency cannot be equal to 100% or more than 100%.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.