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The formation of O(3) from O(2) is...

The formation of `O_(3)` from `O_(2)` is

A

exothermic and reversible

B

endothermic and irreversible

C

endothermic and reversible

D

exothermic and spontaneous

Text Solution

Verified by Experts

The correct Answer is:
C
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The Value of DeltaG^(@) for the formation of Cr_(2)O_(3) is -"540KJ mol"^(-1) and that of Al_(2)O_(3) is -827"KJ mol"^(-1) . Is the reduction of Cr_(2)O_(3) possible with Al ?

Knowledge Check

  • In the formation of Al_(2)O_(3) from Al and O_(2) , if 1.5 mole of oxygen is used up, the mass of aluminium that reacted is

    A
    27g
    B
    54 g
    C
    108 g
    D
    81 g

  • In the formation of Al_(2)O_(3) from Al and O_2 . if 1.5 mole of oxygen is used up, the mass of aluminium that reacted is

    A
    27g
    B
    54g
    C
    108g
    D
    81g

  • The formation of water from H_(2(g)) and O_(2(g)) is an exothermic reaction because

    A
    `H_(2(g)) and O_(2(g))` have a higher chemical energy that water
    B
    `H_(2(g)) and O_(2(g))` have a lower chemical energy that water
    C
    `H_(2(g)) and O_(2(g))` have higher temperature than water
    D
    Energy considerations do not arise

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