The efficiency of steam engine is 26.66 %.
<h3>What is Efficiency?</h3>
The efficiency is defined as the work done by the engine divided by the heat supplied.
Work done is the difference between the heat supplied and heat rejected.
So, efficiency η = (Qs -Qr) / Qs
Given is the heat supplied Qs = 225 Joules and heat rejected Qr =285 . then the work done is
W = 225 -225 = - 60 Joules
Efficiency η = 60/225 x 100%
η = 26.66 %
Thus, the efficiency of the steam engine is 26.66 %.
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They have to be warm because of the word thermic which means heat
P=MV Is The Equation
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Answers
1.) non-polar
2.) non-polar
3.) Polar
4.) Polar
Non-polar molecules are essentially molecules that have an even distribution of of electrical charges.
Polar molecules is the separation of electric charges, having one positive end and another negative end.
