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3 years ago

Complete the missing words

Physics

1 answer:

Goryan [66]3 years ago

5 0

-Biogas is a mixture of Methane and carbon dioxide.

-It is produced when microorganisms digest waste material.

-Biogas is burned, and the energy can be used for cooking,eating and lighting.

<h3 /><h3>What is biogas?</h3>

Biogas is a combination of gases made from agricultural waste, manure, municipal trash, plant material, sewage, green waste, and food waste.

Biogas

-Biogas is a mixture of Methane and carbon dioxide.

-It is produced when microorganisms digest waste material.

-Biogas is burned, and the energy can be used for cooking,eating and lighting.

Bioethanol

-Ethanol can be made by fermentation.

-Fermentation is the process of using yeast to convert the sugar into ethanol.

-Carbon dioxide is always produced.

-The fermented mixture can be distilled to produce more concentrated biogas.

-Bioethanol is quite cheap to produce.

-Ethanol can be used as a fuel, it only gives just carbon-neutral carbon dioxide and water.

Advantages: Crops grown for bioethanol production take-in water, carbon di oxide from the atmosphere. This goes some way toward bioethanol carbon dioxide and water.

Disadvantages: The price of crops can increase growing plants for the production of bioethanol may mean that land

-Bio-fuels-what are they and where they come from?

-Biofuel is fuel made from the living organisms or a by-product of waste, and vegetable oil.

-Biofuel currently being produced from waste, vegetable oil and sugarcane is already sustainable.

It comes from planting crops that can be planted and harvested every year.

Advantages:

Bio diesel is less expensive than regular diesel.

Releases less pollution than ordinary diesel.

Disadvantages: We can't make enough. Biodiesel is Toxic

Hence, Biogas is a mixture of Methane and carbon dioxide.

To learn more about biogas, refer to the link;

brainly.com/question/19153803

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A 1,200-watt water heater is plugged into a 120-volt outlet and used for 1.5 hours. How much current runs through the vacuum?

natita [175]

   Power = (voltage) x (current)

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   Current = (1,200 watt) / (120 volt) = 10 Amperes.

How long the heater heats is irrelevant. The current
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Two moles of neon gas at 25oC and 2.0 atm is expanded to 3 times the original volume while the pressure is reduced to 1.0 atm. F

bazaltina [42]

Answer:

The end temperature is 174 °C

Explanation:

Ideal gases are a simplification of real gases that is done to study them more easily. It is considered to be formed by point particles, do not interact with each other and move randomly. It is also considered that the molecules of an ideal gas, in themselves, do not occupy any volume.

The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:

P*V = n*R*T

where P is the gas pressure, V is the volume that occupies, T is its temperature, R is the ideal gas constant, and n is the number of moles of the gas.

So, being:

P= 2 atm
V=?
n= 2 moles
R= 0.082 $\frac{atm*L}{mol*K}$
T= 25 °C= 298 °K

and replacing:

2 atm*V= 2 moles* 0.082 $\frac{atm*L}{mol*K}$ *298 K

you get:

$V=\frac{2 moles* 0.082\frac{atm*L}{mol*K} *298 K}{2 atm}$

V= 24.436 L

Now, two moles of neon gas is expanded to 3 times the original volume while the pressure is reduced to 1.0 atm. Then you know:

P= 1 atm
V= 3*24.436 L=73.308 L

n= 2 moles
R= 0.082 $\frac{atm*L}{mol*K}$
T= ?

Replacing:

1 atm*73.308 L= 2 moles* 0.082 $\frac{atm*L}{mol*K}$ *T

Solving:

$T=\frac{1 atm*73.308 L}{2 moles* 0.082\frac{atm*L}{mol*K}}$

T= 447 °K= 174 °C (being 0°C=273 °K)

The end temperature is 174 °C

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