Question

For which of the following reaction, is Gay Lusaac Law not applicable?

• A. Formation of HI from its constituents.
• B. Formation of NH₃ from its constituents
• C. Formation of CO₂ from its constituents
• D. Formation of SO3 from SO₂ and O₂

Answer 1

The correct option is C

Formation of CO₂ from its constituents

Option (C) is correct answer.

Explanation for correct options:

Option(C):

• Constituents of Carbon dioxide are Carbon and Oxygen, and they exist in different physical states.
• Carbon is Solid and Oxygen is Gas.
• Gay Lusaac Law is applicable only for gaseous reactions.
• It is not applicable on Solids and Liquids.
• Hence formation of CO₂ from its constituents is not applicable to Gay Lussac Law.

Explanation for the incorrect options:

Option (A):

• Formation of HI from its constituents is applicable for Gay Lussac Law.
• The constituents are in the same physical state, i.e., in the gaseous state.
• Hence this is not the correct answer.

Option (B):

• Formation of NH₃ from its constituents is applicable for Gay Lussac Law.
• The constituents are in the same physical state, i.e., in the gaseous state.
• Hence this is not the correct answer.

Option (D):

• Formation of SO₃ from SO₂ and O₂ is applicable for Gay Lussac Law.
• The constituents are in the same physical state, i.e., in a gaseous state.
• Hence this is not the correct answer.

Hence option (C) is the correct answer.