Fig. 5-8: T1= 400K
T2= 300k, T3= 200K
The circle represents a reversible engine. During some integral number of
complete cycles the engine absorbs 1200 J from the reservoir at 400 K and performs 200 J
of mechanical work. (a) Find the quantities of heat exchanged with the other reservoirs,
and state whether the reservoir gives up or absorbs heat. (b) Find the change in entropy
of each reservoir, (c) What is the change in entropy of the universe ?​

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.

the ima (higher than 1m) will be greater than the ima with the height of 1m.