Given that a commercial airliner has a range of 6000 miles using 200 tonnes of JP4 fuel, estimate the range of the aircraft burning either gaseous or liquid hydrogen and

a. The same mass of hydrogen as JP4,

b. The same volume of hydrogen as JP4.

The dry mass of the aircraft is 800 tonnes. The fuel properties are as follows:

Fuel JP4 H2 (gaseous, S.T.P.) H2 (liquid, 1 atm) Density (kg/m3) 800.0 0.0824 70.8 Heating value (kJ/kg) 45000 120900 120900