3 years ago

Convert 5.6 bushels to hectoliters

Physics

1 answer:

Pavel [41]3 years ago

4 0

Answer:

Explanation:

5.6 bushel(1 hectoliter/2.8 bushel) = 2.0 hectoliters

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What is the total entropy change if a 0.280 efficiency engine takes 3.78E3 J of heat from a 3.50E2 degC reservoir and exhausts i

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Answer:

$\Delta S=1.69J/K$

Explanation:

We know,

$\eta=1-\frac{T_2}{T_1}=1-\frac{Q_2}{Q_1}$ ..............(1)

where,

η = Efficiency of the engine

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Q₁ = Heat available initially

Q₂ = Heat after reaching the temperature T₂

Given:

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Substituting the values in the equation (1) we get

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$Q_2=3.78\times 10^3\times0.72$

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Now,

The entropy change ( $\Delta S$ ) is given as:

$\Delta S=\frac{\Delta Q}{T_1}$

$\Delta S=\frac{Q_1-Q_2}{T_1}$

substituting the values in the above equation we get

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