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The following sequence of reaction occur...

The following sequence of reaction occurs in commical production of aqueous nitric acid.
`NH_(3)(g)+O_(2)(g) rarr NO(g)+H_(2)O(l)`
`NO(g)+O_(2)(g)rarr NO_(2)(g)`
`NO_(2)(g)+H_(2)O(l) rarr HNO_(3)(aq)+NO(g)`
In an industry , 378 kg of `HNO_(3)` was required to be produced.
If % yield of all reactions is 100% , then mass(kg) of `NH_(3)` required is :[NO produced in reaction -(iii) is not re-used in reaction-(ii)]

A

306

B

170

C

126

D

153

Text Solution

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The correct Answer is:
D
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Nitric acid can be produced from ammonia in three step process. {:(,4NH_(3)(g)+5O_(2)(g)rarr4NO_(g)+6H_(2)O(g),...(1)),(,2NO(g)+O_(2)(g)rarr2NO_(2)(g),...(2)),(,3NO_(2)(g)+H_(2)O(l)rarr2HNO_(3)(aq.)+NO(g),...(3)):} Calculate weight of NH_(3)(g) required to produce 1260kg of HNO_(3) . When % teild of 1^(st), 2^(nd) and 3^(rd) reaction are respectively 69%,60% and 68% respectively.

In the commercial manufacture of nitric acid, how many moles of NO_(2) produce 7.33 mol of HNO_(3) in the reaction : 3NO_(2)(g)+H_(2)O(l) rarr 2HNO_(3)(aq)+NO(g) ?

Knowledge Check

  • The following sequence of reaction occurs in commical production of aqueous nitric acid. NH_(3)(g)+O_(2)(g) rarr NO(g)+H_(2)O(l) NO(g)+O_(2)(g)rarr NO_(2)(g) NO_(2)(g)+H_(2)O(l) rarr HNO_(3)(aq)+NO(g) In an industry , 378 kg of HNO_(3) was required to be produced. If % yield of all reactions is 100% , then mass (kg) of NH_(3) , required is :[NO produced is reactionp-(iii) re-used in reaction-(ii)]

    A
    153
    B
    126
    C
    102
    D
    can't be determined

  • The following sequence of reaction occurs in commical production of aqueous nitric acid. NH_(3)(g)+O_(2)(g) rarr NO(g)+H_(2)O(l) NO(g)+O_(2)(g)rarr NO_(2)(g) NO_(2)(g)+H_(2)O(l) rarr HNO_(3)(aq)+NO(g) In an industry , 378 kg of HNO_(3) was required to be produced. If % yield of reaction(i),(ii) and (iii) is 85% , 60% and 50% respectively , then mass (kg) of NH_(3) required is : [NO produced in reaction(iii) is not re-used in reaction-(ii)]

    A
    30
    B
    600
    C
    6000
    D
    300

  • The following sequence of reaction occurs in commercial producatio of aqueous nitric acid. 4NH_(3)(g)+5O_(2)(g) to 4NO(g)+6H_(2)O(l), DeltaH=-904Kj...(i) 2NO(g)+O_(2)(g)to 2NO_(2)(g), DeltaH=-112KJ...(ii) 2NO_(2)(g)+2H_(2)O(l)to 2HNO_(3)(aq)+H_(2)(g), DeltaH=-140KJ...(iii) Determine the total heat liberated (in KJ/mol) at mole of aqueous nitric acid from NH_(3) by this process:

    A
    `-352`
    B
    `-405`
    C
    `246.5`
    D
    none of these

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    The following sequence of reaction occurs in commercial production of aqueous of aqueous nitric acid. {:(4 NH_(3) (g) + 5O_(2) (g) rarr 4NO (g) + 6 H_(2) O (l),Delta H = - 904 kJ.....(1),),(2 NO (g) + O_(2) (g) rarr 2NO_(2) (g) ,Delta H = - 112 kJ.....(2),),(3 NO_(2) (g) + H_(2) O (l) rarr 2HNO_(3) (aq) + NO (g),Delta H = - 140 kJ.....(3),):} Determine the total heat liberated (in kJ/mol) at constant pressure for the production of exactly 1 mole of aqueous nitric acid from NH_(3) by this process.

    For the given series of reaction, 4NH_(3)(g) + 5O_(2)(g) rarr 4NO(g) + 6H_(2)O(l) 2NO(g) + O_(2)(g) rarr 2NO(g) +O_(2)(g) rarr 2NO_(2)(g) If 20 ml of NH_(3) is mixed with 100 ml of O_(2) .Volume contraction at the completion of above reaction is:

    In the reaction 4NH_(3)+3O_(2(g)) to 2N_(2(g))+6H_(2)O_((g))

    For the given series of reaction, 4NH_(3)(g) + 5O_(2)(g) rarr 4NO(g) + 6H_(2)O(l) 2NO(g) + O_(2)(g) rarr 2NO(g) +O_(2)(g) rarr 2NO_(2)(g) Total volume of O_(2) used if 20 ml NH_(3) is mixed with 100 ml O_(2) is :

    For the given series of reaction, 4NH_(3)(g) + 5O_(2)(g) rarr 4NO(g) + 6H_(2)O(l) 2NO(g) + O_(2)(g) rarr 2NO(g) +O_(2)(g) rarr 2NO_(2)(g) To obtain maximum mass of NO_(2) from a given mass of a mixture of NH_(3) and O_(2) the ratio of mass of NH_(3) ot O_(2) should be:

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