Question

Give reasons for the following:
NO (g) released by jet aeroplanes is a slow depleting ozone layer.

Answer 1

Hint: The gas mostly found in the atmosphere is ozone and ${{O}_{3}}$ its chemical formula. This ozone gas is one of the greenhouse gases in the earth’s atmosphere. A greenhouse gas means the characteristic of gas which absorbs infrared radiation from the earth’s surface.

Complete step by step solution:
-The Earth’s atmosphere is divided into six layers based on temperature. Out of six layers, the most important layer according to the environmental approach is the stratosphere layer.
-A large amount of ozone gas in the stratosphere is referred to as the ozone layer, which holds 19% of gases with very little vapor.
-Nitric oxides emitted from the exhausts of supersonic jet aeroplanes. This nitric oxide (NO) reacts with ozone present in the atmosphere and releases oxygen gas with nitrogen dioxide.
$NO(g)+{{O}_{3}}(g)\to N{{O}_{2}}(g)+{{O}_{2}}(g)$
From the above reaction, when supersonic jet aeroplanes fly near the ozone layer they are responsible for the depletion of the ozone layer.

Hence, $NO$ gas released in the atmosphere causes a slow depleting ozone layer.

Note: In the 21st century, Nitrous oxide has become the largest ozone-depleting gas emitted through human activities and is expected to remain the largest throughout the century. The scientist confirmed that along with chlorofluorocarbons (CFCs), nitrous oxide will remain a significant ozone layer destroyer. Nitrous oxide is emitted from a byproduct of agricultural fertilization, industrial processes, and natural resources. The role of nitrous oxide in causing depletion of the ozone layer has been observed for decades.