1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
givi [52]
3 years ago
11

List irreversibilities

Engineering
1 answer:
natali 33 [55]3 years ago
6 0

Answer:

Some of the irreversibilities are listed below:

  • Plastic deformation of solids
  • Transfer of heat over finite difference of temperature
  • When two fluids are mixed together the process is irreversible
  • Combustion of a gas
  • Current flowing through a finite resistor
  • Diffusion and free compression or expansion of gas
  • Relative motion of body with force of friction
  • Processes involving chemical reactions(spontaneous)

You might be interested in
What is Geography? pliz help​
UkoKoshka [18]

Answer:

hope it's helpful please like and Follow me

8 0
3 years ago
Read 2 more answers
How many junctions are in a typical house
masya89 [10]

Explanation:

there are no limits of the number of junction boxes in any particular circuit.

5 0
3 years ago
Read 2 more answers
Consider a steam turbine, with inflow at 500oC and 7.9 MPa. The machine has a total-to-static efficiency ofηts=0.91, and the pre
sergiy2304 [10]

Answer: \dot m_{in} = 23.942 \frac{kg}{s}, \dot H_{out} = 39632.62 kW

Explanation:

Since there is no information related to volume flow to and from turbine, let is assume that volume flow at inlet equals to \dot V = 1 \frac{m^{3}}{s}. Turbine is a steady-flow system modelled by using Principle of Mass Conservation and First Law of Thermodynamics:

Principle of Mass Conservation

\dot m_{in} - \dot m_{out} = 0

First Law of Thermodynamics

- \dot W_{out} + \eta\cdot (\dot m_{in} \dot h_{in} - \dot m_{out} \dot h_{out}) = 0

This 2 x 2 System can be reduced into one equation as follows:

-\dot W_{out} + \eta \cdot \dot m \cdot ( h_{in}- h_{out})=0

The water goes to the turbine as Superheated steam and goes out as saturated vapor or a liquid-vapor mix. Specific volume and specific enthalpy at inflow are required to determine specific enthalpy at outflow and mass flow rate, respectively. Property tables are a practical form to get information:

Inflow (Superheated Steam)

\nu_{in} = 0.041767 \frac{m^{3}}{kg} \\h_{in} = 3399.5 \frac{kJ}{kg}

The mass flow rate can be calculated by using this expression:

\dot m_{in} =\frac{\dot V_{in}}{\nu_{in}}

\dot m_{in} = 23.942 \frac{kg}{s}

Afterwards, the specific enthalpy at outflow is determined by isolating it from energy balance:

h_{out} =h_{in}-\frac{\dot W_{out}}{\eta \cdot \dot m}

h_{out} = 1655.36 \frac{kJ}{kg}

The enthalpy rate at outflow is:

\dot H_{out} = \dot m \cdot h_{out}

\dot H_{out} = 39632.62 kW

3 0
3 years ago
What do means by tenes​
Nikitich [7]
In Greek mythology, Tenes was the eponymous hero of the island of Tenedos. He was the son either of Apollo or of King Cycnus of Colonae by Proclia, daughter or granddaughter of Laomedon. ... The natives of the island pronounced Tenes their king.
8 0
4 years ago
Pie charts should have no more than eight segments. True or False?
Pepsi [2]

Answer:

Explanation:

Pie charts generally should have no more than eight segments.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Find the compressibility factor Z for oxygen at 3 MPa and 160 K.
    9·1 answer
  • A stationary conductive loop with an internal resistance of 0.5 Ω is placed in a time varying magnetic field. When the loop is c
    11·1 answer
  • Part of a good computer posture is to sit up straight with feet flat on the floor t or f
    9·1 answer
  • a pump takes water from the bottom of a large tank where the pressure is 50 psi and delivers it through a hose to a nozzle that
    15·1 answer
  • Training is a way for employers to provide ____ to enable employees to protect themselves and others from injuries.
    9·2 answers
  • I'm timed!!! Which of the following occupations uses recording technology to produce soundtracks for television programs or movi
    15·1 answer
  • Solve the inequality below.Use the drop-down menus to describe the solution and its graph.
    12·1 answer
  • What is 3'-9" in feet?
    11·1 answer
  • What is the best way to cut a taper
    5·2 answers
  • One end of a___ is tapered to a dull point and is used to align larger holes such as
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!