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Alekssandra [29.7K]
3 years ago
7

Which of the following statements about cylinder placement are true?

Engineering
1 answer:
Alenkinab [10]3 years ago
3 0
What is the following?
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One kilogram of water fills a 150-L rigid container at an initial pressure of 2 MPa. The container is then cooled to 40∘C. Deter
lukranit [14]

The pressure of water is 7.3851 kPa

<u>Explanation:</u>

Given data,

V = 150×10^{-3} m^{3}

m = 1 Kg

P_{1} = 2 MPa

T_{2}  = 40°C

The waters specific volume is calculated:

v_{1} = V/m

Here, the waters specific volume at initial condition is v_{1}, the containers volume is V, waters mass is m.

v_{1} = 150×10^{-3} m^{3}/1

v_{1} = 0.15 m^{3}/ Kg

The temperature from super heated water tables used in interpolation method between the lower and upper limit for the specific volume corresponds 0.15 m^{3}/ Kg and 0.13 m^{3}/ Kg.

T_{1}= 350+(400-350) \frac{0.15-0.13}{0.1522-0.1386}

T_{1} = 395.17°C

Hence, the initial temperature is 395.17°C.

The volume is constant in the rigid container.

v_{2} = v_{1}= 0.15 m^{3}/ Kg

In saturated water labels for T_{2}  = 40°C.

v_{f} = 0.001008 m^{3}/ Kg

v_{g} = 19.515 m^{3}/ Kg

The final state is two phase region v_{f} < v_{2} < v_{g}.

In saturated water labels for T_{2}  = 40°C.

P_{2} = P_{Sat} = 7.3851 kPa

P_{2} = 7.3851 kPa

7 0
3 years ago
What is Geography? pliz help​
UkoKoshka [18]

Answer:

hope it's helpful please like and Follow me

8 0
3 years ago
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A dual voltage/dual resistance AC hair dryer can be used with a 120 V or 230 V power supply. A switch allows the user to set the
NISA [10]

Answer:

The power is  p= 5621 W

Explanation:

In order to obtain the power it consumes we need to first obtain the resistance of the hair dryer at 120 V

                  R = \frac{V^2}{P} = \frac{(120 V)^2}{1530W} = 9.411 \Omega

Now the power supplied in Europe at their voltage of 230V would be

                           P = \frac{V^2} {R} = \frac{(230V)^2}{9.411 \ \Omega} = 5621 W

Looking the power obtain we see that it is higher than 1530 W so this would cause the dryer to smoke.

                     

3 0
4 years ago
Which of the following would NOT have to be cleaned after each use?
Delicious77 [7]

Answer:

OD.

nail brush

Explanation:

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3 years ago
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A Carnot power cycle is executed in a piston-cylinder system using 1 kg of water. The cycle consists of an isobaric expansion of
jeka94

Answer:

b) Determine the heat transfer into the cycle and the net work for the cycle, in kJ.

Explanation:

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