To break the bond between chlorine atoms in one mole of Cl₂, it requires 243 kj of energy. how many calories of energy does this correspond to?
A ) 1 .07 × 10⁶ cal
B ) 9 .01 × 10⁶ cal
C ) 5 .81 × 10⁴ cal
D ) 17.2 cal
E ) 1.07 cal