Calculate the volume required to store 4 kg of hydrogen at these various conditions described below;

a. In gaseous form at NTP and when pressurized up to 300 bar

b. In liquid form at 25K

c. In solid state at room temperature

d. Summarized the results in a table and comment on the storage requirements for the above three forms.

Be detailed as much as possible in your answers, and state steps taken with equations and constants