Question

Determine the sign of entropy change in the reaction:
N2+O2---->2NO
all in gas state

Answer 1

Answer:

that's ethnol formula

Answer 2

There is no change in entropy ($\Delta S = 0$)

Explanation:

Entropy change of any chemical reaction can be determined by considering the change in:

• temperature
• number of gaseous species
• the physical state of reactant and product

The given reaction is $N_2(g) + O_2(g) \rightarrow 2NO(g)$

• In this reaction, two gaseous molecules of nitrogen and oxygen are converted into two gaseous molecules of nitric oxide.
• Hence, there is no net change in the number of gaseous molecules.
• Thus, the entropy of the system is not changing. $\Delta S = 0$