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3 years ago

What is biomass energy? How does it work? (2-3 sentences is good enough c:)

Chemistry

1 answer:

Delvig [45]3 years ago

4 0

Answer:

Biomass’ is a fancy word for something very simple: stuff that’s found in nature. People have used biomass energy ever since the very first cave-dwelling person thought to make a fire out of wood!

Wood can be used in biomass energy production

Today, biomass power plants use everything from animal waste to wood pellets to create electricity. There are lots of advantages to biomass energy, which is a renewable energy source. But there’s also some debate about whether it’s the greenest type of energy around. Here at OVO, we chose to remove biomass from our fuel mix in 2017, in favour of cleaner energy sources: wind, solar, hydro and tidal energy.

Ready to learn more? Read on to find out everything you need to know about biomass and biofuels.

What is biomass energy?

Biomass is made up of living things (or things that were once living). This can include any plant or animal material, such as sugarcane or corn crops, wood chips, or even dung.

All these types of biomass contain energy, because they’re organic materials. So, whether they started life as plants or animals, they’ve all absorbed chemical energy naturally from the sun.

When they’re used as biomass, these materials are called ‘feedstocks’.Sources of biomass energy

How does biomass energy work? Biomass energy production explained

Biomass feedstocks can be used to create 3 types of energy:

Heat

Electricity

Biofuels, such as biodiesel

Some biomass plants are multi-taskers, creating both heat and electricity. These are known as CHP (Combined Heat and Power) plants.

So, how do biomass plants create heat? Simple: by burning feedstocks, just like our ancestors have done for thousands of years.

Read on to find out how biomass energy production turns wood into electricity or diesel.

How can biomass generate electricity?

Biomass can generate electricity in a number of ways – but the most common is ‘direct combustion’. This means burning the agricultural waste or wood to heat water. This produces steam, which spins turbines.

In some biomass plants, the extra steam can also be used in on-site manufacturing processes, or for heating. This makes the whole process even more energy efficient. Smart, right?

There are many other ways to generate electricity using biomass. Some scientists are even exploring the possibility of using what we’ll politely call ‘human waste’ to power homes!

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For each solute, identify the better solvent: water or carbon tetrachloride

Rom4ik [11]

The better solvent for Na₂S (Natrium sulfide)and CH₃OH(methanol): water

The better solvent for C₆H₆(benzene) and Br₂(bromine) : CCl₄

<h3>Further explanation</h3>

In covalent bonds there are differences in electronegativity which causes polarization of the bonds

If the bond in an electron pair is more attracted to one atom, then the covalent bond is polar

This is due to the electron attraction of one atom which is bigger than the other atoms

But the geometrical shape of molecules can make molecules that have polar bonds can be polar or non-polar

The symmetrical shape of the molecule is usually a non-polar molecule

For example on H₂O

This molecule is polar because of the difference in electronegativity where the O atom has a stronger electron attraction when compared to the H atom, so this molecule have positive and negative poles where the negative pole is on the O atom

Polar molecules dissolved in water undergo ionization so they can conduct electricity and are electrolyte, while non-polar molecules are non-electrolyte.

<em>Polar molecules will dissolve polar molecules and vice versa non-polar molecules can dissolve non-polar molecules. </em>

So water molecules that can be used to test polar and non-polar molecules by dissolving them in water

The size of polarity is usually indicated by the magnitude of the dipole moment

The greater the dipole moment, the more polar the compound is. In non-polar compounds the dipole moment is zero.

water- H₂O is a polar solvent, due to the large electronegativity between O and H atoms, and the shape of the V molecule (asymmetrical)

CCl₄- Carbon tetrachloride is a nonpolar solvent, where C atoms as central and Cl atoms have different electronegativity but because of the symmetrical shape so that the dipole moment is removed and so it is nonpolar

Let see that each of these compounds is polar or non-polar

Na₂S (Natrium sulfide)and CH₃OH(methanol) are ion compounds that can dissolve in polar solvents such as water

C₆H₆(benzene) and Br₂(bromine) are non-polar covalent compounds with symmetrical shapes and do not have free electron pairs that can dissolve in CCl₄

<h3 /><h3>Learn more</h3>

ionic bonding

brainly.com/question/1603987

type of chemical bond

brainly.com/question/5008811

Lewis structures

brainly.com/question/6085185

Keywords : chemical bond, covalen bond, water, electrons, dipole moment

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4 0

3 years ago

Read 2 more answers

Concentrated hydrochloric acid is an aqueous solution that is 34.70 % HCl. The density of the solution is 1.19 g/mL. What mass o

mixas84 [53]

The mass of HCl that is contained in the solution is 147 g HCl

Why?

To find the mass of HCl we have to apply what is called a conversion factor. In a conversion factor we put the units we don't want at the bottom, and the ones we want at the top.

For this question, we want to go from liters of solution to mass of HCl, and the conversion factor is laid out as follows:

$0.356Lsolution*\frac{1000mL}{1L}*\frac{1.19 g solution}{1 mL solution}*\frac{34.70 g HCl}{100 g solution}=147 g HCl$