Recent content by abhishek4

Yes, i am sorry i forgot to mention that in the post.

I know that in a closed system there is no change in volume and we can assume that pressure is remaining constant too but then using the ideal gas equation moles come out to be constant too so in such a case moles formed must be equal to the moles reacted which does not happen in all cases. I...

That is true but when I asked my teacher she also said that in a closed system this is possible. Why is that?

In thermodynamics when can we say that ΔH = ΔU?

Thank you sir, your answer was really helpful and I completely understand the fact of sound being infinite in case of this hypothetical situation but can we actually conclude from this that such an object does not exist just the way how we disprove theories in maths by making assumptions to...

Thanks.

Thank you so much. This helped a lot, i didnt think of relating it to special relativity, thanks a lot.

i have researched in this topic and was looking for a to the point answer plus i have been looking for about 12 hours for this solution which made me think that you were not trying to give an answer. I am sorry.

Thanks a lot for your reply but i was wondering in case of a rigid body shouldn't the particles resist vibrations. It was just a hunch but in any case shouldn't the sound be 0 or undefined.

i would like to make it clear to you that physics from the start has been the study of unknown and as per me no question is a waste of time. I would like to thank you for your reply but it wasn't what i was looking for as i did not ask for a lecture on what science is. Also as you are saying...

Homework Statement What will be the speed of sound in a perfectly rigid body? Given : In a hypothetical situation we have a rigid body find the speed of sound when it passes through the material. Elasticity of medium = ∞ Homework Equations velocity = √E/ρ ρ = density E = elasticity of medium...

Homework Statement : A cylinder is elongated by 2% of its original length. If Poisson's ratio of its material is 0.3. Calculate the percentage variation in volume.[/B]Homework Equations V = πr^2l η= 0.3= Δl/l/Δr/r[/B]The Attempt at a Solution I tried using calculus to differentiate V to find...