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(a) Suggest a quantitative method for estimation of a gas which protects us from U.V. rays of the sun. (b) Nitrogen oxides emitted from the exhaust system of supersoni jet aeroplanes slowly deplete the concentration of ozone layer in upper atmosphere. Comment. |
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Answer» Solution :(a) Ozone `(O_(3))` absorbs ultraviolet radiations (220 - 290 NM) and thus protects us from the harmful radiations of the sun. (b) NO present in the exhaust of supersonic AEROPLANES combines rapidly with `O_(3)` FORMING `O_(2)` thereby DEPLETING the concentration of `O_(3)` in the UPPER atmosphere. `NO(g) + O_(3)(g) rarr NO_(2)(g) + O_(2)(g)` |
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