For independent process at 300 ,K. Process H / kJ ,mol ^ -1 S / J… - Vidyadip

MCQ

For independent process at $300\,K$.

Process	$\Delta H / kJ\,mol ^{-1}$	$\Delta S / J K^{-1}$
$A$	$-25$	$-80$
$B$	$-22$	$40$
$C$	$25$	$-50$
$D$	$22$	$20$

The number of non-spontaneous process from the following is $.....$

A
$4$
B
$6$
C
$2$
D
$8$

✓

Answer

c\
$\Delta G =\Delta H - T \Delta S$

$A : \Delta G \left( J\,mol ^{-1}\right)=-25 \times 10^3+80 \times 300:- ve$

$B : \Delta G \left( J\,mol ^{-1}\right)=-22 \times 10^3-40 \times 300:- ve$

$C : \Delta G \left( J\,mol ^{-1}\right)=25 \times 10^3+300 \times 50:+ ve$

$D : \Delta G \left( J\,mol ^{-1}\right)=22 \times 10^3-20 \times 300:+ ve$

Processes $C$ and $D$ are non-spontaneous.

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