Calculation of the exhaust velocity of a Hot Water Rocket

[Basimalasi]

inb4 "google it", I did. There aren't a lot of information about this topic.

Can a Hot Water Rocket or a Steam rocket ever succeed to reach outer space?
I can calculate the exhaust velocity by determining the change in enthalpy I guess but I don't in which state will it exist in and how can I get the values from the thermodynamics table, so imagine we have a 5MW heater then we heated a tank full of water, how much is the mass and energy needed to fly is and which state will the water have?

 

[Nidum]

Basic answer is that a rocket engine based on heating a tank of water is unlikely to be successful .

You might find a lot of explanation and background interest in these topics though :

(1) Liquid Hydrogen/Liquid oxygen rocket engines .

(2) Hydrogen Peroxide catalytic rocket engines .

(3) Flow in a convergent -divergent nozzle - usually called a DeLaval nozzle .