A heat engine operating between a pair of hot and cold reservoirs with respective temperatures of 500 K and 200 K will have what maximum efficiency? A) 60%
B) 50%
C) 40%
D) 30%

The maximum efficiency of the heat engine is 60%.

Explanation:

Given that,

The temperature of hot reservoir = 500 K

The temperature of cold reservoir = 200 K

We need to find the maximum efficiency. The formula for the efficiency of heat engine is given by :

Put all the values,

or

So, the maximum efficiency of the heat engine is 60%.

b) phosphorus pentoxide

1 - wave length

2 - amplitude

3 - crest

4 - trough

explanation:

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