I answered your question many times, but since you are full of shit, you will continue to pretend that i didn't!
Stop lying.
You are yet to answer this.
This is almost certainly because you know answering it will show you have been lying the entire time and know that rockets do work in a vacuum and that they don't need to push off anything other than their own exhaust.
Spamming the same refuted nonsense again and again will not help you.
It will not magically answer the question.
Again:
What force is acting on the gas that is exiting the rocket to make it go in a particular direction and what is the other body involved in this interaction?
The Expansion produces THRUST FORCE!
And again, you fail to answer the question as you have failed to identify the second body involved in this interaction.
If the expansion produces thrust force, why isn't this force accelerating the rocket?
Free expansion!
Does not apply in this case.
With free expansion, there is no net change in the velocity of the gas.
With a rocket there is.
Also note that free expansion does not care what the actual pressures are, just that there is a difference.
If free expansion would magically prevent rockets from working in a vacuum it would also prevent them working in the atmosphere.
On the other hand, there is no resistance in a vacuum, hence : the second body is missing!
If that was the case, that would mean that the gas CANNOT accelerate.
That the gas MUST REMAIN INSIDE THE ROCKET!
By claiming there is no second body you are claiming that gas will magically be held inside the rocket rather than escaping out the opening to a vacuum.
Is that really the path of stupidity you want to go down?
Again, we know the gas will leave the rocket. To claim otherwise is claiming pure magic, that you can hold gas inside an open container surrounded by vacuum.
We also know that as there is only one opening in one direction, it will leave in a particular direction.
We know that that means it will have a velocity relative to the rocket.
We know that it started without a net velocity relative to the rocket.
We know that that means it needs to be accelerated.
We know that it has mass.
We know that that means it needed a force applied to accelerate it.
We know that that involves interaction with a second body.
We know that that will also accelerate the second body.
Claiming there is no second body means there cannot be any iteraction and thus no force and thus no acceleration and thus the gas remained trapped inside the rocket.
If that is what you want to claim, then state it directly. Go against all known physics and claim that in a vacuum, because there is no second body, gas will remain inside an open vessel with absolutely nothing to keep it in.
If you don't want to claim that and instead want to accept that the gas will escape, you need to identify the second body. Claiming there is none will not help.
As a reminder, the only thing there to act as the second body is the rocket.
That makes it clear why you are avoiding answering it. Because you know that answering it will show that you know rockets will work in a vacuum.
Was this helpful
No, you ignoring reality and repeating the same refuted nonsense without dealing with the refutation is not helpful in any sense.
So going to answer the question yet, by either identifying the second body or by claiming the gas will magically stay trapped inside an open container?