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johndous3698
29.10.2020 •
Social Studies
This part of the article helps us understand the following about Ha or her situation:
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Ответ:
Sorry, but who is Ha supposed to be? Where is the part of the article?
Ответ:
Explanation:
We know,
where,
η = Efficiency of the engine
T₁ = Initial Temperature
T₂ = Final Temperature
Q₁ = Heat available initially
Q₂ = Heat after reaching the temperature T₂
Given:
η =0.280
T₁ = 3.50×10² °C = 350°C = 350+273 = 623K
Q₁ = 3.78 × 10³ J
Substituting the values in the equation (1) we get
or
or
⇒![Q_2 =2.721\times 10^3 J](/tpl/images/0106/3573/579bf.png)
Now,
The entropy change (
) is given as:
or
substituting the values in the above equation we get