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Covers the study of (primarily homogeneous) macroscopic systems from a heat/energy/entropy point of view. Consider also using the tag: [statistical-mechanics].

1 vote
2 answers
305 views

Why should layers of air rise up and the layer above it takes it place

I am a high school student and I am very confused in a topic dealing with "why hot air rises up" I know it is already answered but the answers are difficult for me to understand I want a simple answer …
Virender Bhardwaj's user avatar
0 votes
0 answers
44 views

Details on why temperature is lower at high altitude

I have read at so many places that warmer air moves up as hotter substances expands and as it rises it loses its kinetic energy and it gets converted into its potential energy(gravitational+interatomi …
Virender Bhardwaj's user avatar
1 vote
1 answer
75 views

Why the work done by surrounding on the piston is same as average work done by surrounding o... [closed]

In thermodynamics when we derive the formula for work done by the surrounding on the gas, we actually derive the formula for work done by the surrounding on the piston and say that let the surrounding …
Virender Bhardwaj's user avatar