The bond enthalpy value for a carbon to hydrogen bond is 413 kJ. What does this mean?
Answer

It takes 413 kJ of energy to break a carbon to hydrogen bond.

The formation of a carbon to hydrogen bond releases 413 kJ of energy.

Both of the above

Question

The bond enthalpy value for a carbon to hydrogen bond is 413 kJ. What does this mean?
Answer
		
It takes 413 kJ of energy to break a carbon to hydrogen bond.
		
The formation of a carbon to hydrogen bond releases 413 kJ of energy.
		
Both of the above

anonymous · Answer

I think it is the 1st one.....

abb0t · Answer

Since the value given is positive, it means that this is a endothermic reaction, so...its not choice 2.

abb0t · Answer

and if it's not choice two, it cannot be choice 3.