The exhaust temperature is 200 K
Explanation:
The maximum efficiency of a machine is given by the equation:
where:
is the temperature of the hot reservoir
is the temperature of the cold reservoir
For the engine in this problem, we have:
(efficiency is 33.3%)
is the temperature of the hot reservoir
Re-arranging the equation for , we can find the exhaust temperature (the temperature of the cold reservoir):
Learn more about temperature:
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The water is likely to be dirty or not clear enough. I mean, if you through a key into the body of water, you can't see the key at the bottom of the water body because of impurities which make the water look dirty or not visible or transparent enough.
A, B and C are all physical property. So we cross that out. The remaining option is D. Rusting. Which is a chemical property.
Answer:
75 × 1.5 = 112.5, hope it helps
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