binis's latest activity
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binis reacted to Dullard's post in the thread The Mpemba Effect: Conditions Needed for Occurrence with
Like.
This may not be the thread to ask in, but: I had never heard of the 'Mpemba effect' until this morning. I was aware of claims that hot... -
binis reacted to vanhees71's post in the thread Undergrad Why is Entropy defined as a fraction of heat over temperature? with Like.
You mean Rudolf Clausius. I find the introduction of entropy among the most challenging didactic task in (theoretical) physics teaching...
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binis reacted to Chestermiller's post in the thread Undergrad Why is Entropy defined as a fraction of heat over temperature? with
Agree.
I don't regard entropy and entropy change to be directly related to heat at all. The entropy of a substance or system can change... -
binis reacted to anuttarasammyak's post in the thread Undergrad Why is Entropy defined as a fraction of heat over temperature? with Like.
May be it would rather make you confuse more, what is temperature T ? Surely we know the ways how to measure it and make use of it in...
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binis reacted to Chestermiller's post in the thread Undergrad Why is Entropy defined as a fraction of heat over temperature? with
Informative.
This response doesn't make any sense to me. If I have two bodies of mass M and heat capacity C, with one at absolute temperature... -
binis reacted to Philip Koeck's post in the thread Undergrad Why is Entropy defined as a fraction of heat over temperature? with Like.
Actually you should write deltaS = Q / T or dS = dQ / T. I've written a short text on exactly this and I also recommend Chestermiller's...
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binis reacted to Chestermiller's post in the thread Undergrad Why is Entropy defined as a fraction of heat over temperature? with Informative.
See my Physics Forums Insights Article on entropy and the 2nd law of thermodynamics...
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binis reacted to anuttarasammyak's post in the thread Undergrad Why is Entropy defined as a fraction of heat over temperature? with Like.
From differential form we get definition of entropy S_2-S_1 =\int_1^2 \frac{dQ}{T} where integration path from state 1 to state 2 is any...
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binis reacted to Ale_Rodo's post in the thread Undergrad Why is Entropy defined as a fraction of heat over temperature? with Like.
Your answer is great, but I feel like it's a bit far from what I was trying to achieve. For instance, but I was trying to imagine what...
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binis reacted to vanhees71's post in the thread Undergrad Why is Entropy defined as a fraction of heat over temperature? with Agree.
The thermal energy of a classical ideal gas is ##U=f k_{\text{B}} N T/2##, where ##f## is the number of "relevant degrees of freedom"...
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Wow you even have citations. Are there plans to connect to Zotero?
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binis reacted to Chestermiller's post in the thread Undergrad Is Water's Volume Expansion Upon Freezing an Intrinsic Property? with Informative.
Yes. Check out the phase diagram for water Phase Diagram of Water Also, the water experiences an increase in volume in the deformed...
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binis reacted to Chestermiller's post in the thread Undergrad Is Water's Volume Expansion Upon Freezing an Intrinsic Property? with Agree.
The container could impose compressive stress on the ice which alters the thermodynamic relationship between ice and water, and can...
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binis reacted to Chestermiller's post in the thread Undergrad Is Water's Volume Expansion Upon Freezing an Intrinsic Property? with Agree.
The volume expansion from water to ice is an intrinsic property of water specifically under the constraint of negligible confining...
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binis reacted to kuruman's post in the thread Undergrad Is Water's Volume Expansion Upon Freezing an Intrinsic Property? with Like.
I am wondering if someone better versed in non-equilibrium thermodynamics than me can attribute these, apparently...