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What is done to reduce pollutionn by car...

What is done to reduce pollutionn by carbon monoxide or nitric oxide etc. formed furing combustion of fuels in automobiles ?

Text Solution

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Catalytic convertors consisting of transition metals and their oxides are fitted into the automobile axhauts system. They help in oxidatin of CO to `CO_(2)` and reduction of NO to `N_(2)` which are harmless guses.
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In an ovan , due to insufficient supply of oxygen, 60% of the carbon is converted to carbon dioxide wehreas the remaining 40% is converted into carbon monoxide. If the heat of combustion of carbon to CO_(2) is 394kJ mol^(-1) while that of its oxidation to CO is 111 kJ mol^(-1) , calculate the total heat produced in the oven by burning 10 kg of coal containing 80% carbon by weight .Also calculate the efficiency of the oven.

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Knowledge Check

  • At what temperature carbon monoxide reduces ferric oxide to Fe ?

    A
    900 K
    B
    1200 K
    C
    2000 K
    D
    500 K

  • Statement-1: One of the source of carbon monoxide production is automobile exhaust and Statement-2: CO is produced as a result of incomplete combustion of fuel in automobile engines.

    A
    Statement-1: is True, Statement-2 is True, Statement-2 is a correct explanantion for Statement-1
    B
    Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1
    C
    Statement:1 is True, Statement -2 is False
    D
    Statement-1 is False, Statement-2 is True

  • 10 mL of mixture containing carbon monoxide and nitrogen required 7mL, oxygen to form CO_(2) and NO, on combustion The volume of N_(2) in the mixture will be:

    A
    7/2mL
    B
    17/2mL
    C
    4mL
    D
    7mL

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    Which of the following oxides cannot be reduced with carbon monoxide?

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    According to Ellingham diagram, the oxidation reaction of carbon to carbon monoxide may be used to reduce which one of the following oxides at the lowest temperature ?

    According to Ellingham diagram, the oxidation reaction of carbon to carbon monoxide may be used to reduce which one of the following oxides at the lowest termperature ?

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