What information you would gain by watching the video. Plz Help due today.

A 10 wt % aqueous solution of sodium chloride is fed to an evaporative crystallizer which operates at 80o C. The product is a sl

VikaD [51]

Answer: The feed rate is

17,020kg/he and the rate is 13,520kg/h

Check the attachment for step by step explanation

3 0

3 years ago

A steam turbine has isentropic efficiency of 0.8. Isentropically, it is supposed to deliver work of 100 kW. What is the actual w

trapecia [35]

Answer:

80 kW; 11 kW; 8 kW; 0.6

Explanation:

Part 1

Isentropic turbine efficiency:

$\eta_t = \frac{\text{Real turbine work}}{\text{isentropic turbine work}} = \frac{W_{real}}{W_s}$

$W_{real} = \eta_t*W_s$

$W_{real} = 0.8*100 kW$

$W_{real} = 80 kW$

Part 2

Coefficient of performance COP is defined by:

$COP = \frac{Q_{out}}{W}$

$Q_{out} = W*COP$

$Q_{out} = 5 kW*2.2$

$Q_{out} = 11 kW$

Part 3

(a)

Energy balance for a refrigeration cycle gives:

$Q_{in} + W = Q_{out}$

$3 kW + 5 kW = Q_{out}$

$8 kW = Q_{out}$

(b)

$COP = \frac{Q_{in}}{W}$

$COP = \frac{3 kW}{5 kW}$

$COP = 0.6$

3 0

3 years ago

Using models helps scientists conduct research. How else can research using models save lives?

Nina [5.8K]

Answer: find the answer in the explanation.

Explanation:

Some of the methods of science are hypothesis, observations and experiments.

Scientific research and findings cut across many areas and field of life. Field like engineering, astronomy and medicine e.t.c

Using models in research is another great method in which researchers and scientists can master a process of a system and predict how it works.

Wilbur and Orville Wright wouldn't have died if the first airplane built by these two wonderful brothers was first researched by using models and simulations before embarking on a test.

Modelling in science involves calculations by using many mathematical methods and equations and also by using many laws of Physics. In this present age, many of these are computerised.

In space science, it will save lives, time and money to first model and simulate if any new thing is discovered in astronomy rather than people going to the space by risking their lives.

Also in medicine, drugs and many medical equipment cannot be tested by using people. This may lead to chaos and loss of lives.

So research using models in astronomy, medicine, engineering and many aspects of science and technology can indeed save lives.

6 0

3 years ago

Wyatt is handling the urban design of an area. He ensures that there are speed bumps and traffic lights on roads. Which activity

Whitepunk [10]

The activity in urban design is Wyatt ensuring is C.traffic calming.

<h3>What is the motive of site traffic calming measures?</h3>

The motive of site visitor's calming measures is to gradual down fast-transferring site visitors to a velocity greater appropriate for the place they may be entering. These measures are generally located in rural regions at the access factors to cities or villages.

Traffic calming is an aggregate of in particular bodily measures that lessen the poor consequences of motor car use, modify motive force conduct and enhance situations for non-motorized road users. It can lessen the velocity of motors however its impact is minimum for 2 wheeler.

Read more about the traffic calming:

brainly.com/question/389792

#SPJ1

8 0

2 years ago

What are the factors that influence the amount of elastic energy in an object? Select all

Arte-miy333 [17]

Answer:the answer is A B and C

A B and C

The more compact the body, the less friction, and the more mass the mass must have friction.

7 0

3 years ago