CBSE (Science) Class 11CBSE
Share
Notifications

View all notifications

For the Reaction, What Are the Signs of Triangleh and Triangle S ? - CBSE (Science) Class 11 - Chemistry

Login
Create free account


      Forgot password?

Question

For the reaction,2Cl(g) → Cl2(g), what are the signs of Δand ΔS?

Solution 1

ΔH and Δare negative

The given reaction represents the formation of chlorine molecule from chlorine atoms. Here, bond formation is taking place. Therefore, energy is being released. Hence, ΔH is negative.

Also, two moles of atoms have more randomness than one mole of a molecule. Since spontaneity is decreased, ΔS is negative for the given reaction.

Solution 2

∆H : negative (- ve) because energy is released in bond formation

∆S : negative (- ve) because entropy decreases when atoms combine to form molecules.

  Is there an error in this question or solution?

APPEARS IN

Solution For the Reaction, What Are the Signs of Triangleh and Triangle S ? Concept: Spontaneity - Entropy and Spontaneity.
S
View in app×