Answer:
The value is
or 21.45%
Explanation:
From the question we are told that
The first reservoir is at steam point
The second reservoir is at room temperature 
Generally the maximum theoretical efficiency of a Carnot engine is mathematically evaluated as

=> 
=>
The relationship between the masses of the Earth, moon and sun and their distances to each other play critical roles in affecting tides
The outer shell can hold 1 electron
Particle kinetic energy and particle speed