34. a steam engine operates between 300k and 600k, the maximum possible efficiency of this
engine is
a. 100%
b. 75%
c. 50%
d. 25%

c. 50%

Explanation:

The maximum efficiency of a heat engine is:

η = 1 − (Tc / Th)

where Tc is the low temperature and Th is the high temperature.

In this case, Tc = 300 K and Th = 600 K:

η = 1 − (300 / 600)

η = 0.50

The maximum possible efficiency is 50%.

hello there!

your answer is a “generator”

a generator does not create energy but instead it transforms it.

it’s basically a motor working in reverse.

answer: a) y=-8x+5

a) m= -8

b) m= -2

c) m= 7

d) m= 6