All categories

3 years ago

What is the Principle of Entropy Increase?

Engineering

1 answer:

Hunter-Best [27]3 years ago

7 0

Answer and Explanation:

The increase in entropy principle is defined as the process in which the total change in entropy of system with its adiabatic surroundings is always positive or equal to zero. The increase in entropy mostly takes place when a solid becomes liquid because randomness is increases when solid becomes liquid so entropy is also increases.

example of increase of entropy is when solid burns and become ash, ice melting

You might be interested in

Air flows at 45m/s through a right angle pipe bend with a constant diameter of 2cm. What is the overall force required to keep t

HACTEHA [7]

Answer:

b)1.08 N

Explanation:

Given that

velocity of air V= 45 m/s

Diameter of pipe = 2 cm

Force exerted by fluid F

$F=\rho AV^2$

So force exerted in x-direction

$F_x=\rho AV^2$

$F_x=1.2\times \dfrac{\pi}{4}\times 0.02^2\times 45^2$

F=0.763 N

So force exerted in y-direction

$F_y=\rho AV^2$

$F_y=1.2\times \dfrac{\pi}{4}\times 0.02^2\times 45^2$

F=0.763 N

So the resultant force R

$R=\sqrt{F_x^2+F_y^2}$

$R=\sqrt{0.763^2+0.763^2}$

R=1.079

So the force required to hold the pipe is 1.08 N.

3 0

4 years ago

Consider a finite wing with an aspect of ratio of 7; the airfoil section of the wing is a symmetric airfoil with an infinite-win

kow [346]

Answer:

The solution for this question is attached below:

6 0

4 years ago

A disc brake rotor is being machined. Technician A says that a feed rate of 0.0008 inch per revolution and 150 RPM is where the

erma4kov [3.2K]

Answer:

Technician B only

Explanation:

During rotor reconditioning, which is the process also known as machining and sanding, where sanding is the involves the application of between 120 and 150 grit sandpaper while using a non-excessive force that is applied non-directionally for up to 60 seconds on each side such that the surface roughness meets OE standards. The rotors are then cleaned by washing after they are serviced before they can then be installed.

3 0

3 years ago

Mary is interested in developing new machines that would increase the productivity of small scale farmers. After high school, wh

vovangra [49]

Answer:

Agricultural engineering

Explanation:

Hello,

First, this area of engineering deals with design, construction and upgrade of farm equipment and machines for purpose of production and processing.

This course will equip Mary with the skills and knowledge that can be applied is solving challenges in the field of Agriculture especially in areas of power supplies, machinery efficiency, agricultural products storage and processing, environmental issues, pollution in the ecosystem and structures and facilities that improve agriculture.

The vital skills that Mary should develop while pursing this course are analytical skills to solve complicated systems, technical skills to do proper math, critical thinking skills to be able to think outside the box for solutions and communication skills to proper work with others.

Mary will learn about using software to design systems, machine operation and farm equipment.Her studies will cover ways of modifying the environment for sustainable agricultural practices.She will be able to know ways of testing farm equipment to ensure proper functionality and high output.This is a multi-disciplinary career, hence she will interact with civil engineers, contractors, environmentalists and other stakeholders to ensure the goals of projects are attained.

Hope this Helps Engineer!

8 0

3 years ago

An operating gear box (transmission) has 350 hp at its input shaft while 250. hp are delivered to the output shaft. The gear box

True [87]

Answer:

Rate of Entropy =210.14 J/K-s

Explanation:

given data:

power delivered to input = 350 hp

power delivered to output = 250 hp

temperature of surface = 180°F

rate of entropy is given as

$Rate\ of\ entropy = \frac{Rate\ of \ heat\ released}{Temperature}$

T = 180°F = 82°C = 355 K

Rate of heat = (350 - 250) hp = 100 hp = 74600 W

Rate of Entropy $= \frac{74600}{355} = 210.14 J/K-s$

8 0

3 years ago