One kilojoule is equivalent to how many kilocalories?

1. Standard free energy change is expressed as energy per mole of reaction product, in either kilojoules or kilocalories. 2. The conversion between the two units is that 1 kJ equals 0.239 kcal. 3. A kilocalorie is the larger unit, so the number of kilocalories must be smaller than the number of kilojoules. 4. Any value above one would make the kilocalorie the smaller unit, which reverses the relationship. _Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 6 "Metabolism", section 6.2 Potential, Kinetic, Free, and Activation Energy_