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3 years ago

Burning wood in a fireplace is an example of what kind of energy conversion?

Chemistry

2 answers:

S_A_V [24]3 years ago

8 0

Answer:

A. because the wood is stored chemical energy and it is converting into heat energy

natka813 [3]3 years ago

7 0

Answer:

Chemical potential energy converting to heat energy.

Explanation:

Burning of wood in a fire place or burning of any other compound in presence of oxygen involves combustion. During combustion there is breaking and making of bonds as combustion is a chemical reaction.

For example:

Combustion of carbon gives carbon dixoide:

$C(s)+O_{2}(g)-->CO_{2}(g)$

Combustion is an exothermic reaction, it releases large amount of energy.

Thus in all we are converting the chemical energy of a substance to heat energy during combustion.

Hence combustion involves Chemical potential energy converting to heat energy.

You might be interested in

Enter a balanced equation for the reaction between solid silicon dioxide and solid carbon that produces solid silicon carbide an

givi [52]

Answer:

SiO2(s) + 3C(s) ------> SiC(s) + 2CO(g)

Explanation:

The formula for silicon oxide is SiO2 and carbon is C. silicon carbide is SiC

and carbon monoxide is CO.

An arrow is always used to separate the reactants (left) and products (right).

A balanced equation must contain equal number of atoms in each side of the equation.

For example in the equation above, there are 1 atom of silicon appears on each side; 2 atoms of oxygen and three atoms of carbon.

3 0

2 years ago

Element, Compound or Molecule Identify each of the images as an element, molecule or compound.

Olin [163]

Answer:

The answer is:

A) Element

B) Molecule

C) Compound

5 0

2 years ago

What part of the atom determines if it will combine or break apart from other substances?

anzhelika [568]

Answer:

The atom consist of three parts, proton, neutron and electrons. The electrons determine that i will combine or beak from other substances.

Explanation:

The atom consist of three parts which are following

proton
neutron
electron

The proton and neutron form nucleus of an atom. It is present at center of an atom. They have positive charges, while electrons remained outside the nucleus in particular energy levels or shell around the nucleus.

During combination or breaking of substances ,only arrangements of electrons take place. The valence shell electrons decide whether they have to combine or not, while nucleus remained unchanged during any reactions.

3 0

2 years ago

If a material mixes readily with water it is identified as

Rama09 [41]

If a material mixes readily with water it is describe as HYDROPHILIC. Hydrophilic substances are water loving molecules, there reaction with water is favorable in term of thermodynamics. This type of substance are usually charged and often have ability to get involve in hydrogen bonding.

3 0

3 years ago

Calculate the work, w, gained or lost by the system when a gas expands from 15 L to 45 L against a constant external pressure of

marta [7]

Answer:

Work done by the system = 4545 J

Explanation:

The expression for the calculation of work done is shown below as:

$w=-P\times \Delta V$