MCQ
Match the thermodynamic processes given under Column $I$ with the expression given under Column $II$:
Column $I$ Column $II$
$(A)$ Freezing of water at $273 K$ and $1 \ atm$ $(P)$ $q =0$
$(B)$ Expansion of $1 \ mol$ of an ideal gas into a vacuum under isolated conditions $(Q)$ $w=0$
$(C)$ Mixing of equal volumes of two ideal gases at constant temperature and pressure in an isolated container $(R)$ $\Delta S _{\text {sy5 }} < 0$
$(D)$ Reversible heating of $H _2( g )$ at $1 \ atm$ from $300 \ K$ to $600 \ K$, followed by reversible cooling to $300 \ K$ at $1 \ atm$ $(S)$ $\Delta U =0$
  $(T)$ $\Delta G =0$
  • $( A ) \rightarrow( R , T ) ;( B ) \rightarrow( P , Q , S ) ;( C ) \rightarrow( P , Q , S ) ;( D ) \rightarrow( P , Q , S , T )$
  • B
    $( A ) \rightarrow( R , S ) ;( B ) \rightarrow( P , Q , R ) ;( C ) \rightarrow( P , Q , R ) ;( D ) \rightarrow( P , Q , R , T )$
  • C
    $( A ) \rightarrow( P , T ) ;( B ) \rightarrow( P , R , T ) ;( C ) \rightarrow( P , R , T ) ;( D ) \rightarrow( P , R , S , T )$
  • D
    $( A ) \rightarrow( S , T ) ;( B ) \rightarrow( R , S , T ) ;( C ) \rightarrow( Q , R , S ) ;( D ) \rightarrow( Q , R , S , T )$

Answer

Correct option: A.
$( A ) \rightarrow( R , T ) ;( B ) \rightarrow( P , Q , S ) ;( C ) \rightarrow( P , Q , S ) ;( D ) \rightarrow( P , Q , S , T )$
a

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