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The laws of thermodynamics imply that there will always be some loss of efficiency.

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Q: Why can efficiency never can be 100 percent?
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Related questions

Why may an electrical heater be 100 percent efficient?

They can never reach that level of efficiency.


Does a refrigerator have 100 percent efficiency?

nothing has 100% efficiency.


Can a car have a 100 percent efficiency?

No. Nothing mechanical can ever have a 100% efficiency by any physical evaluation.


What would cause the calorimeter efficiency to be less than 100 percent?

why is the efficiency of a calorimeter less than 100%


How does the output work compare to the input work for a machine that has an efficiency equal to 100 percent?

If a machine has 100 percent efficiency, the output work = the input work. That's actually basically what the efficiency of a machine is - output work / input work * 100.


When efficiency is at 100 percent it is known as what with power factor?

"Unity"


Why is is that is impossible to have a 100 percent efficiency?

Cuz nuffin is purfect


An ideal machine would have an efficiency of?

A ideal machine would have an efficiency of 100 percent. For this to be possible, the amount of energy output by the machine would equal the amount of energy input. Because all machines have physical parts, some energy is lost to friction, heat dissipation, or other factors, so no machine can be an ideal machine.


What is the formula to calculate percent efficiency?

(work out/work in) x 100


Why a normal machine could not have the mechanical efficiency of 100?

Because there is always going to be friction, the efficiency of any machine will always be less then 100 percent.


What is the efficiency of a machine that requires 100 joules of input energy to do 35 joules of useful work?

The machine efficiency is 35 percent (35/100).


What would a machine that had 100 percent mechanical efficiency be called?

an ideal machine