Recent content by Pranav Jha

Melting and boiling explanation based on the kinetic-molecular model have always confused me. I am in grade 12 and still don't feel that I have got any real understanding of the process. Something that has always seemed odd to me is that the idea of increase in potential energy is only mentioned...

I meant how does compression go on to increase the chance of explosion?

What role does "compression" play here?

Do we somehow increase the chances of "explosion" (defining the term while explaining would be helpful) by compressing a gas?

It is repeatedly mentioned that "compressing hydrogen carries a significant risk of explosion"?. But why does compression of hydrogen carry explosion risk? Is it true for all gases?

Please differentiate between "bandwidth" and "waveband"

My physics book repeatedly refers to the term "waveband" while explaining the bandwidth of AM broadcasts It states that : The bandwidth of AM broadcasts on the LW and MW wavebands is 9kHz. However, I haven't been able to deduce the meanings of the term "bandwidth" and "wavebands" in the...

Please state that mathematically

Thanks but could you clarify the math further. I think i am starting to get the concept.

While reading about frequency modulation, I found that it was clearly written that the amplitude of the carrier wave remains unchanged. However, i didn't find a statement stating that the frequency of the carrier wave remains unchanged for amplitude modulation. So, is the frequency of the...

I don't think I understand the concept. The potential curve got me thinking but still couldn't convince me about the thermal expansion. The book says that when temperature increases, the distance between the particles increases based on the PE curve. I think that was just reiterating the...

Why do substances expand on heating? Please give an understandable molecular account of the process of expansion.

You just inspired me to force my self into studying entropy!

However, if you were to give it a (+, -, 0) , which sign would you give to the work done by the atmosphere on the melting ice?

Thank you, that makes so much more sense. A further question: Does the contraction of an object necessarily mean that some work has been done by the atmosphere on the object?