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2 years ago

Which chemical equation is balanced?

Physics

2 answers:

kifflom [539]2 years ago

8 0

The answer to this equation is c

nika2105 [10]2 years ago

6 0

Answer:

Explanation:

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Saturated steam at 125 kpa is compressed adiabatically in a centrifugal compressor to 700 kpa at the rate of 2.5 kg⋅s−1. the com

Tpy6a [65]

M° = 2.5 kg/sec
For saturated steam tables
at p₁ = 125Kpa
hg = h₁ = 2685.2 KJ/kg
SQ = s₁ = 7.2847 KJ/kg-k
for isotopic compression
S₁ = S₂ = 7.2847 KJ/kg-k
at 700Kpa steam with S = 7.2847
h₂ 3051.3 KJ/kg
Compressor efficiency
h = 0.78
0.78 = h₂ - h₁/h₂-h₁
0.78 = h₂-h₁ → 0.78 = 3051.3 - 2685.2/h₂ - 2685.2
h₂ = 3154.6KJ/kg
at 700Kpa with 3154.6 KJ/kg
enthalpy gives
entropy S₂ = 7.4586 KJ/kg-k
Work = m(h₂ - h₁) = 2.5(3154.6 - 2685.2
W = 1173.5KW

5 0

3 years ago

Claim-Evidence-Reasoning assessment. Scenario - The Sun constantly undergoes explosions called solar eruptions. When a solar eru

SpyIntel [72]

Answer:

Explanation:

4 0

3 years ago

Which object has the least thermal energy?

hichkok12 [17]

Answer:

2kg brick

Explanation:

2kg brick at 25 degrees.

5 0

2 years ago

Read 2 more answers

Which is the term for the study of weather and climate?

Semenov [28]

Answer:

Meteorology

Explanation:

That is indeed the study of weather and climate.

4 0

3 years ago

What do you think will happen to the potential energy of the ball if the mass of the ball remains the same and placed in a highe

lapo4ka [179]

Answer:

Potential energy of the ball would increase

Explanation:

The formula for potential energy of an object is:

Potential Energy (object) = mass x gravity x height

In your question, the value for height is increased when the object (ball) is placed in a higher position. This creates a net positive change in the right-hand side of the formula and since the value of mass and gravity doesn't change because gravity is a constant (meaning it's always 9.8N/kg) and the mass is said to be kept the same, the ball's potential energy would increase.

4 0

2 years ago