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Nikitich [7]
3 years ago
12

Water is contained in a piston-cylinder assembly undergoes four processes separately, all started from an initial state where th

e pressure is p1, the temperature is T1, and the specific volume is v1:
Process 1→2: Constant temperature (isothermal) to p2 = 2p1; Process 1→3: Constant specific volume to p3 = 2p1;

Process 1→4: Constant pressure (isobaric) to v4 = 2v1; Process 1→5: Constant temperature (isothermal) to v5 = 2v1.

Draw a p-v diagram and a T-v diagram for the water including the saturated liquid line and the saturated vapor line (dome).

The initial state (state 1) is at the saturated vapor state, note down state 2, 3, 4 and state 5 on both diagrams, and draw all processes (Process 1→2, 1→3, 1→4 and 1→5)

Engineering
1 answer:
Andrews [41]3 years ago
3 0

Answer:

see pictures

Explanation:

In the pictures you can see the different processes.

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Which of the following identifies the three main steps in the design process of an engineer?
ikadub [295]

Answer:

define the problem, do background research and specify requirements

8 0
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A lake is fed by a polluted stream and a sewage outfall. The stream and sewage wastes have a decay rate coefficient (k) of 0.5/d
joja [24]

Solution :

Given :

k = 0.5 per day

$C_s = 10 \ mg/L \ ; \ \ Q_s= 40 \ m^3/s$

$C_{sw} = 100 \ ppm \ ; \ \ Q_{sw}= 0.5 \ m^3/s$

Volume, V $= 200 \ m^3$

Now, input rate = output rate + KCV ------------- (1)

Input rate  $= Q_s C_s + Q_{sw}C_{sw}$

                $=(40 \times 10) + (0.5\times 100)$

                $= 2 \times 10^5 \ mg/s$

The output rate $= Q_m C_{m}$

                          = ( 40 + 0.5 ) x C x 1000

                          $=40.5 \times 10^3 \ C \ mg/s$

Decay rate = KCV

∴$KCV =\frac{0.5/d \times C \  \times 200 \times 1000}{24 \times 3600}$

            = 1.16 C mg/s

Substituting all values in (1)

$2 \times 10^5 = 40.5 \times 10^3 \ C+ 1.16 C$

C = 4.93 mg/L

4 0
3 years ago
Design a posttest-only experiment that would test each of the following causal claims. For each one, identify the study’s indepe
Lostsunrise [7]

Answer:

a.

Here independent variable is negative reinforcement like punishment. The dependent variable is aggressiveness.

Control group : Teacher

Experiment group : Students

b.

Independent variable : Exercise

Dependent variable : Depression

Various levels of independent variables : The time of exercise may be increased or reduced

c.

Independent variable: Environment friendly messages

Dependent variables : Environment friendly behavior

Interaction: The verbal exchange among the peers.

6 0
3 years ago
A shift register is a synchronous sequential circuit that will store or move data. It consists of several flip-flops, which are
GrogVix [38]

Answer:

yeahHhhhhhhhhh

8 0
3 years ago
Air enters a 200 mm diameter adiabatic nozzle at 195 deg C, 500 kPa and 100 m/s. It exits at 85 kPa. If the exit diameter is 158
ahrayia [7]

Answer:

v_2 = 160.23 m/s

T_2 = 475.797 k

Explanation:

given data:

Diameter =d_1 = 200mm

t_1 =195 degree

p_1 =500 kPa

v_1 = 100m/s

p_2 = 85kPa

d_2 = 158mm

from continuity equation

A_1v_1 = A_2v_2

v_2 = \frac{\frac{\pi}{4}d_1^2 v_1^2}{\frac{\pi}{4}d_2^2}

v_2 = \frac{d_2v_1}{d_2^2}

v_2 = [\frac{d_1}{d_2}]^2 v_1

      = [\frac{0.200}{0.158}]^2 \times 100

v_2 = 160.23 m/s

by energy flow equation

h_1 + \frac{v_1^2}{2} +gz_1 +q =h_2 + \frac{v_2^2}{2} +gz_2 +w

z_1 =z_2 and q =0, w =0 for nozzle

therefore we have

h_1 -h_2 =\frac{v_1^2}{2} -\frac{v_2^2}{2}

dh = \frac{1}{2} (v_1^2 -v_2^2)

but we know dh = Cp dt

hence our equation become

Cp(T_2 -T_1) = \frac{1}{2} (v_1^2 -v_2^2)

Cp (T_2 -T_1) = 7836.94

(T_2 -T_1) = \frac{7836.94}{1.005*10^3}

(T_2 -T_1) = 7.797

T_2 = 7.797 +468 = 475.797 k

8 0
3 years ago
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