Using data from the Table, answer the following :ExamolesC2H6EthaneC2H

1.	Using data from the Table, answer the following :ExamolesC2H6EthaneC2H4EtheneC2H2EthyneStructureType of bond between carbonssingledoubletripleBond length (nm)0.1540.1340.120Bond length kJ mol-1348612837a. What happens to the bond length when unsaturation increases?b. Which is the most stable compound?c. Indicate the relation between bond strength and Bond enthalpy.d. Comment on overall relation between Bond length, Bond Enthalpy and Bond strength and stability.
Answer» a. When unsaturation increases, the bond length decreases. b. The stable compound is ethyne (C₂H₂). c. Bond strength ∝ Bond enthalpy Larger the bond enthalpy, stronger is the bond. d. As bond length decreases, bond enthalpy, bond strength and stability increase.

Using data from the Table, answer the following :ExamolesC2H6EthaneC2H4EtheneC2H2EthyneStructureType of bond between carbonssingledoubletripleBond length (nm)0.1540.1340.120Bond length kJ mol-1348612837a. What happens to the bond length when unsaturation increases?b. Which is the most stable compound?c. Indicate the relation between bond strength and Bond enthalpy.d. Comment on overall relation between Bond length, Bond Enthalpy and Bond strength and stability.

Answer»

a. When unsaturation increases, the bond length decreases.

b. The stable compound is ethyne (C₂H₂).

c. Bond strength ∝ Bond enthalpy

Larger the bond enthalpy, stronger is the bond.

d. As bond length decreases, bond enthalpy, bond strength and stability increase.