Question

Which of the following processes shows a decrease in entropy of the system?

Answer 1

in this entropy decreases

Answer 2

Hey Dear,

Complete question is added in the image.

★ Answer -

(a) 2NO(g) + O2(g) --> 2NO2(g)

◆ Explaination -

In first reaction, no of reactant molecules are 3 & no of product molecules are 2.

As no of gaseous molecules are decreased in reaction, entropy of the system will decrease in this reaction.

● Entropy -

• Entropy is measure of disorder of substance.
• Entropy according to states of matter is
• solid < liquid < gas
• Entropy of the system also increases with increase in no of molecules.

Hope this helps you.