Question
In: Biology
What are the main chemical compounds that destroy the ozone layer?
What are the main chemical compounds that destroy the ozone layer?
Solutions
Expert Solution
- Ozone layer consists of high concentration of Ozone molecules (O3) which absorbs the harmful UV rays coming from sun and preventing the earth from its harmful effects. Ozone is considered as one of the primary greenhouse gas which absords infrared light.
- Ozone depleting chemicals such as gases containing traces of nitogen, hydrogen, chlorine and bromine are the primary accelerators of ozone depletion. Over decades, chlorofluorocarbons (CFCs) and other halogenated ozone depleting substances (ODS) are mainly responsible for man-made chemical ozone depletion. ODS includes methylhalides, carbon tetrafluoride (CF4), carbon tetrachloride (CCl4), and halocarbons i.e. halons which contain bromine instead of chlorine.
- CFCs are primarily released into environment from CFC containing aerosols, refrigerators, and some kinds of foam. However, there are no natural sources of CFCs hence human kind can be blamed for the current consequences lead by CFC compacted environment and its effects.
gladiator answered 1 year agoRelated Solutions
What is Ozone Layer Depletion?
Meaning of Ozone Layer Depletion. Effects of Ozone Layer Depletion. Measures to protect Ozone Layer Depletion.
What is Ozone Layer Depletion?
Meaning of Ozone Layer Depletion. Effects of Ozone Layer Depletion. Measures to protect Ozone Layer Depletion.
8. According to the table provided in your textbook, the two main pollutants responsible for ozone-layer...
8. According to the table provided in your textbook, the two
main pollutants responsible for ozone-layer depletion are
a. Sulphur dioxide and Carbon monoxide.
b. Carbon dioxide and Chlorofluorocarbons
c. ground-level ozone and Nitrogen oxides.
d. Carbon monoxide and Chlorofluorocarbons.
One of the CFCs that is implicated in decreasing the ozone layer and formation of the...
One of the CFCs that is implicated in decreasing the ozone layer
and formation of the ozone hole over Antarctica is Freon-12 or
CCl2F2. Calculate the density (in g/L) of Freon-12 at STP and
compare it to the average density of air. Suggest how Freon-12 can
get into the stratosphere to threaten the ozone layer.
10.What is the ozone layer? 11.What is happening to it? Why? 12.What are the effects? 13.What...
10.What is the ozone layer?
11.What is happening to it? Why?
12.What are the effects?
13.What can we do? What have we done?
14.What is acid rain?
15.What causes it?
16.What effects does it have?
17.What can we do? What have we done?
1. The effect of chlorofluorocarbons (such as CCl2F2(g)) on the depletion of the ozone layer is...
1. The effect of chlorofluorocarbons (such as
CCl2F2(g)) on the depletion of the
ozone layer is well known. The use of substitutes, such as
CH3CH2F(g), for the
chlorofluorocarbons, has largely corrected the problem. Calculate
the volume (in L) occupied by 17.5 g of each of these compounds at
STP.
- CCl2F2(g)
- CH3CH2F(g)
2. Calculate the density (in g/L) of Freon-12,
CF2Cl2, at 28.6°C and 0.984 atm.
One concern about the depletion of the ozone layer is that the increase in UV light...
One concern about the depletion of the ozone layer is that the
increase in UV light will decrease crop yields. An experiment was
conducted in a green house where soybean plants were exposed to
varying levels of UV levels - measured in Dobson units. At the end
of the experiment the yield (kg) was measured. A regression
analysis was performed with the following results:
Term____|_Estimate__|_Std Error_|_t ratio_|_Prob>ltl_|_Lower
95%_|_Upper 95%
Intercept__3.9800118__0.053774__74.01___<.0001___3.8638398___4.0961838
uv_______-0.046285___0.010741__*hidden__0.0008_______****hidden****
A 95% confidence interval for the mean yield when...
O3 + O -->2O2) Depletion of the ozone layer is believed to be caused by chlorine...
O3 + O -->2O2)
Depletion of the ozone layer is believed to be caused by chlorine
catalyzed O3 decomposition. For the uncatalyzed reaction Ea,f= 19
kJ/mol. For the following mechanism, Ea1, f =2.1 and Ea2,f =0.4
kJ/mol:
Proposed Mechanism:
Cl+O3--> ClO +O2
ClO+O--> Cl+O2
a.) What is the dH for the reaction?
I know the answer is -390 kJ/mol. I don't know where this answer
comes from!
b.) What is the Ea, r for the uncatalyzed reaction?
I know the...
Argumentative essay "Is ozone layer important?" Your project is an argument in a minimum of 1500...
Argumentative essay "Is ozone layer important?"
Your project is an argument in a minimum of
1500 words, supported by reliable sources for your
evidence, avoiding the things that make an argument weak
(ambiguity, fallacies, hasty generalization, etc.)
PLEASE DO NOT COPY AN EXISTING ANSWER FROM CHEGG,
THEY ARE ALL INCORRECT
In your own words (NO PLAGIARISM)
Argumentative essay "Is ozone layer important to life?" Your project is an argument in a minimum...
Argumentative essay "Is ozone layer important to life?"
Your project is an argument in a minimum of
1500 words, supported by reliable sources for your
evidence, avoiding the things that make an argument weak
(ambiguity, fallacies, hasty generalization, etc.)
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