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Earth is an open system regarding matt...

Earth is an open system regarding matter.

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Knowledge Check

  • Assume the reaction is carried out in an open system for which reaction will Delta H=Delta U ?

    A
    `C(S)+2H_2O(g)rarr2H_2(g)+CO_2(g)`
    B
    `PCl_5(g)rarr PCl_3(g)+Cl_2(g)`
    C
    `2CO(g)+O_2(g)rarr2CO_2(g)`
    D
    `H_2(g)+Br_2(g)rarr2HBr(g)`

  • Which is correct regarding acidity -

    A
    `H_(2)S lt H_(2)Se`
    B
    `H_(2) S gt H_(2) Se`
    C
    `H_(2)Se gt H_(2)Te`
    D
    none of these

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