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3 years ago

Which human activity will most likely contribute to ozone layer destruction?

Chemistry

2 answers:

vagabundo [1.1K]3 years ago

5 0

Answer: The compounds containing CFCs (chlorofluorocarbons) are mainly responsible for ozone layer depletion as these compounds react with ozone in the presence of ultraviolet rays to form oxygen molecule and thus, destroying ozone.

Explanation: Human activities cause the emission of halogen source gases that contain chlorine and bromine atoms. These emissions into the atmosphere ultimately lead to stratospheric ozone depletion. The source gases that contain only carbon, chlorine, and fluorine are called chlo- rofluorocarbons usually abbreviated as CFCs.

mezya [45]3 years ago

3 0

Answer:

CFC gases and methane gases.

Explanation:

Chlorofluorocarbons from the air conditioners are one of the main culprits responsible for ozone layer depletion, that react with the airborne particles in the presence of Sun's radiation breaking the ozone into oxygen atoms and as result creating large ozone hole over the planet.

Emission of harmful toxic gases of carbon monoxide and dioxide into the air through the vehicular exhaust also creates an atmosphere full of atmospheric black cloud.

Apart from this the various organism taking up O2 release methane a natural gas which can modify and trap this heat content on the earth burning of polybags and tires fossil fuels and coal also release other harmful gases which are considered to be reactive with the atmosphere.

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Place the following compounds in order of increasing strength of intermolecular forces. Ch4 ch3ch2ch3 ch3ch3

Nikitich [7]

Explanation:

More is the mass of an alkane molecule more will be its boiling point. This means that forces of attraction will be more when mass is more as more heat is required to break the bonds within atoms. Hence, boiling point is more.

Therefore, in the given molecules mass of $CH_{4}$ is 16.04 g/mol, mass of $CH_{3}CH_{2}CH_{3}$ is 44 g/mol, and mass of $CH_{3}CH_{3}$ is 30 g/mol.

Thus, we can see that $CH_{3}CH_{2}CH_{3}$ has the highest mass and $CH_{4}$ has least mass.

Hence, increasing strength of intermolecular forces of given compounds is as follows.

$CH_{4} < CH_{3}CH_{3} < CH_{3}CH_{2}CH_{3}$

8 0

3 years ago

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When a scientific theory has been tested and proved by the scientific community, it

beks73 [17]

Answer:

True

Explanation:

When a theory is proven over and over it will become a law

3 0

3 years ago

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The Henry's law constant for helium gas in water at 30 °C is 3.70 × 10-4 M/atm. When the partial pressure of helium above a samp

igor_vitrenko [27]

Answer:

The concentration of helium in the water is 2.405×10^-4 M

Explanation:

Concentration = Henry's law constant × partial pressure of helium

Henry's law constant = 3.7×10^-4 M/atm

Partial pressure of helium = 0.65 atm

Concentration = 3.7×10^-4 × 0.65 = 2.405×10^-4 M

4 0

3 years ago

Which practice does the Montreal Protocol aim to reduce?

PolarNik [594]

Ozone which is present in the stratospheric region of atmosphere is helpful for preventing harmful UV rays from reaching the surface of earth. Due to human activity, several compounds (specifically chlorofluorocarbons) are released in atmosphere. Due to inherent chemical stability of these compounds, the remain stable in lower region of atmosphere and slowly diffuse into stratosphere. On reaching the stratosphere, these compounds reacts with ozone and thereby depletes the effective concentration of ozone present in atmosphere. Hence, the Montreal Protocol was signed in 1987 by major countries of the world. This aim of this protocol was to protect the stratospheric ozone layer by phasing out the production and consumption of ozone-depleting substances.

6 0

3 years ago

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Heat that flows by conduction is the transfer of thermal energy between substances in contact. What must occur for this to happe

iragen [17]

Is this the full question?

Heat that flows by conduction is the transfer of thermal energy between substances in contact. For this to happen, what must occur?

A) The two systems must be the same temperature.
B) The two systems must not be touching each another.
C) One system must have higher kinetic energy than the other system.
D) The thermal energy of one system must be the same as the thermal energy of the other system.

6 0

3 years ago

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