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3 years ago

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How much work can be extracted from 5.00 × 10^4 J of heat when 2.00 × 10^4 J of heat is exhausted? A. - 7.00 × 10^4 J B. - 3.00

× 10^4 J C. 3.00 × 10^4 J D. 7.00 × 10^4 J ***thank you:)

1 answer:

docker41 [41]3 years ago

5 0

C.
Work=Q(extracted)-Q(exhausted)=3×10^4 J

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The absolute pressure is given by the equation,

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Therefore,

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The gage pressure is given by the equation,

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$P_{abs}=18\ kPa(\frac{1.45\times 10^{-1}\ lbf/in^2 }{1kPa} )=2.6\ lbf/in^2$

The gage pressure,

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The gage pressure,

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u denotes initial velocity
t denotes time

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