## Environmental Science: Earth as a Living Planet (9th Edition)

1. Note that 21kJ/g of energy is equal to 5kcal/g. 2. Obtain the dry mass of wheat by subtracting the amount of water present from the original mass 333,000kg x 0.8 = 266,400kg water dried wheat = 333,000kg - 266,400kg = 66,600kg 3. Calculate the energy content using the relationship indicated in step 1. 66,600kg x $\frac{1000g}{1kg}$ x $\frac{5kcal}{g dried wheat}$ = 333,000,000 kcal