The work done on the gas during this process if the final pressure is 456 kPa is; -82.8 kJ
<h3>Workdone in Thermodynamics</h3>
We are given;
The initial pressure; P₁ = 96 kPa
Final Pressure; P₂ = 456 kPa
The gas is compressed according to;
p = aV + b
where;
a = -1200 kPa/m³
b = 600 kPa
Thus, at initial pressure P₁ = 96 kPa;
96 = -1200V₁ + 600
1200V₁ = 600 - 95
1200V₁ = 505
V₁ = 505/1200
V₁ = 0.42 m³
At Final Pressure P₂ = 456 kPa;
456 = -1200V₂ + 600
1200V₂ = 600 - 456
1200V₂ = 144
V₂ = 144/1200
V₂ = 0.12 m³
Formula for the workdone during the process is;
W_out = ¹/₂(P₁ + P₂)(V₂ - V₁)
W_out = ¹/₂(96 + 456)(0.12 - 0.42)
W_out = -82.8 kJ
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Use SAS(Side angle side ) rule.
Then cosine law i.e a^2=b^2+c^2-2*b*c*COSA
We will get a=69 mm
Now we have all sides use sine law
a/sinA=b/sinB
We will get B=60(deg)
And use the law: sum of all angles of triangle is 180(deg)
We will get C=75(deg).
Answer:
P=- 88.41 KW
Negative sign indicates that power is given to the system.
Explanation:
Given that
P₂=500 KPa
T₂=130°C
V₂=100 m/s
mass flow rate ,m= 0.8 kg/s
Lets take inlet condition for air
T₁=25°C
P₁=100 KPa
V₁=0 m/s
We know that
Heat capacity for air Cp=1.005 KJ/kg.k
We know that for air change in enthalpy only depends only on temperature
Now from first law for open system
W=-110.52 KJ/kg
Shaft power P = m .W
P = -110.52 x 0.8
P=- 88.41 KW
Negative sign indicates that power is given to the system.
A design brief should highlight the problem and specifications for the solution.
<h3>What is an electrical circuit?</h3>
An electrical circuit can be defined as an interconnection of different electrical components, in order to create a pathway for the flow of electric current (electrons) due to a driving voltage.
<h3>The components of an electrical circuit.</h3>
Generally, an electrical circuit comprises the following electrical components:
<h3>What is a design brief?</h3>
A design brief can be defined as a short statement which is written to describe the need of an individual or business, and what type of solution will meet that need (problem) through the design of an electrical circuit.
This ultimately implies that, a design brief should highlight the problem and specifications for the solution.
Read more on design brief here: brainly.com/question/17848745
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