SATHEE: Chemical Thermodynamics Question 408

Chemical Thermodynamics Question 408

Question: For which of the following process, $Δ S$ is negative-

Options:

A) $H_{2} (g) \overset{}{\to} 2 H (g)$

B) $2 S O_{3} (g) \overset{}{\to} 2 S O_{2} (g) + O_{2} (g)$

C) $N_{2} (4 l) \overset{c o m p r e s s e d}{\to} N_{2} (2 l)$

D) $C (d i a m o n d) \overset{}{\to} C (g r a p h i t e)$

Show Answer

Answer:

Correct Answer: C

Solution:

When gas is compressed, its entropy decreases so, $Δ S$ is negative.

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