Answer the following True or False questions. H_2O, CO_2, CH_4, N_2O, O_3, CFCs

Question

Answer the following True or False questions. H_2O, CO_2, CH_4, N_2O, O_3, CFCs are molecules are considered greenhouse gases. What they have in common is that they arc infrared active and therefore can effectively trap heat. True False The depletion of ozone in the stratosphere has been linked to the generation of Cl radical from clorofluorocarbides caused by UV light. Cl radical participate in the following reactions with a catalytic role because it is regenerated at the end of the cycle: Cl + O_3 rightarrow ClO + O_2 ClO + O rightarrow Cl + O_2 .... O_3 + O rightarrow 2O_2 True False

Explanation / Answer

7 True.

Water vapor and certain gases in the atmosphere absorb infrared radiation, causing what is called the Greenhouse Effect. This infrared radiation comes from materials on the Earth's surface that have been heated by sunlight. The absorption of infrared heats the atmosphere to the common temperatures we experience.

8 True

Chemical equation

CFCl3 + UV Light ==> CFCl2 + Cl
Cl + O3 ==> ClO + O2
ClO + O ==> Cl + O2

The free chlorine atom is then free to attack another ozone molecule

Cl + O3 ==> ClO + O2
ClO + O ==> Cl + O2

and again ...

Cl + O3 ==> ClO + O2
ClO + O ==> Cl + O2

and again for thousands of times.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---