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3 years ago

When will the entropy value of the universe attained its maximum value?

Engineering

1 answer:

Maurinko [17]3 years ago

6 0

Answer:

At the equilibrium states.

Explanation:

Entropy

Entropy is a measure of randomness.This is extensive property of thermodynamic systems.The concept of entropy originates from the second law of thermodynamics.

As we know that

Entropy of universe= Entropy of system+ Entropy of surrounding.

So when universe reaches at the equilibrium states then the universe attained its maximum value of entropy.

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Me ayudas plis noce

alekssr [168]

Answer:

Explanation:

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2 years ago

A heat engine that receives heat from a furnace at 1200°C and rejects waste heat to a river at 20°C has a thermal efficiency of

viktelen [127]

Answer:

second-law efficiency = 62.42 %

Explanation:

given data

temperature T1 = 1200°C = 1473 K

temperature T2 = 20°C = 293 K

thermal efficiency η = 50 percent

solution

as we know that thermal efficiency of reversible heat engine between same temp reservoir

so here

efficiency ( reversible ) η1 = 1 - $\frac{T2}{T1}$ ............1

efficiency ( reversible ) η1 = 1 - $\frac{293}{1473}$

so efficiency ( reversible ) η1 = 0.801

so here second-law efficiency of this power plant is

second-law efficiency = $\frac{thernal\ efficiency}{0.801}$

second-law efficiency = $\frac{50}{0.801}$

second-law efficiency = 62.42 %

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3 years ago

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Genrish500 [490]

Answer:

Check the explanation

Explanation:

Kindly check the attached image below to see the step by step explanation to the question above.

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3 years ago

A pin fin of uniform cross-sectional area is fabricated of an aluminum alloy (k = 160W m-1 K-1 ). The fin diameter is D = 4 mm,

disa [49]

Answer: (a) 36.18mm

(b) 23.52

Explanation: see attachment

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3 years ago

3. This material is considered flammable.

almond37 [142]

Answer:

All of the above

Explanation:

Most of materials are flammable because of the chemicals theyre made up of. Most materials that are bought say to keep them at room temature for a reason.

4 0

2 years ago

Read 2 more answers