How high can a person (assume a weight of 70 kg) climb on one ounce of chocolate if the heat of combustion (628 kJ) can be converted completely into work associated with vertical displacement?

Answer 1

E = m g h ... h = E / (m g)

h = 628 kJ / (70 kg * 9.81 m/s^2)

1 Joule = 1 kg m/s^2