As per usual, you make fools of yourselves every time you post.
I will repeat, for the slow: Needing something extrinsic to push against is the totality of Newton's 3rd Law.
A force is a push or pull that acts upon an object as a result of its interaction with another object.
Forces result from interactions.
When a rocket (object A) ignites its exhaust, it creates an ACTION; what, then, does it REACT against?
What is object B?
It cannot be either the rocket or its exhaust because they are object A; it must be something extrinsic.
Avoiding, or lying about, this FACT, or any others, such as the FACT that free expansion clearly states gas does no work in a vacuum does not make them untrue.
& sock-arul; if you are genuinely claiming that a gas molecule cannot push against another gas molecule then you are beyond redemption.
Any object with mass can push against any other object with mass.
Does a gas molecule have mass?
Yes.
Ergo, a gas molecule can push against another gas molecule.
It's all simple stuff...
You just don't want it to be.
Because you want to live in a sci-fi fantasy instead.
Does that count as an ad-hom, Rama Set?
If not, try this: IDIOTS.
LOL!!!