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Papessa [141]
3 years ago
10

How has the modern research in chemistry impacted society

Chemistry
1 answer:
Anastaziya [24]3 years ago
7 0

Answer:

Here is ur answer;

  • Modern research in chemistry has impacted society by allowing us to make informed decision. With the knowledge of chemistry, you can form better opinions about today's news. You will be able to distinguish the truth from the lies in environmental reporting and better understand the meaning of a chemical spill.
  • Modern research in chemistry can lad to technologiesthat aim to benefit the environment, conserve and produce energy, improve human life, and expand our knowledge of the universe. Modern research in chemistry has impacted society by gathering data from afar analyse matter that is brought back to the earth.
  • The industrial application of chemistry directly affects our daily lives --- what to eat, what we wear, our transport, the technology we use, how we treat our illness and how get electricity -- to name a few. Research is constantly deepening our understanding of chemistry and leading to new discoveries.
  • Chemistry is essential to meeting our basic needs of food, clothing, shelter, health, energy and clean air, water and soil. Chemical technologies enrich our quality of life in numerous ways by providing new solutions to problems of health, problems in health, materials and energy usage... For better or for worse, everything is chemical.

<h3>Hope it helps!!</h3>

<em>Then</em><em>;</em>

<h3><em>Please</em><em> </em><em>mark me as brainliest</em><em>!</em><em>!</em><em>!</em></h3>

<em>✨</em><em>Thanks</em><em>!</em><em>!</em><em>!</em><em>!</em>☺<em>✨</em>

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Chloroform flows through a 4.26 inch inside-diameter pipe at the rate of 3.60 gallons per minute. What is the average velocity o
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Answer:

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2) 0,746 lb/s

Explanation:

The relation between flow and velocity of a fluid is given by:

Q=Av

where:

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  • v, velocity of the fluid [ft/s]

1)

To convert our data to appropiate units, we use the following convertion factors:

1 ft=12 inches

1 ft3=7,48 gallons

1 minute=60 seconds

So,

Q=\frac{3,60 gallons}{1 min}*\frac{1min}{60 s}*\frac{1ft3}{7,48gallons}=0,00802 \frac{ft3}{s}

As the pipe has a circular section, we use A=πd^2/4:

d=4,26 inch *\frac{1ft}{12 inch}=0,355ft\\  A=\pi \frac{0,355^{2} }{4}=0,0989ft2

Finally:

Q=vA......................v=Q/A

v=\frac{0,00802ft^{3} /s}{0,0989ft^{2} }=0,081ft/s

2)

The following formula is used to calculate the specific gravity of a material:

SG = ρ / ρW  

where:

  • SG = specific gravity,
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then:

ρ = SG*ρW   = 1,49* 62,4 lb/ft3 = 93 lb/ft3

To calculate the mass flow, we just use the density of the chloroform in lb/ft3 to relate mass and volume:

0,00802 \frac{ft3}{s}*\frac{93lb}{1ft3}=0,746lb/s

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