Recent content by Carcul

Hello. On the web address http://etc.usf.edu/clipart/35600/35631/boit_35631.htm there is an apparatus allegedly used by a scientist named Boit. However, I can find no reference elsewhere on the web regarding any scientist with such a name, or even to such experiment. Can someone tell me who was...

Thank you very much. But why does ΔH = Q implies dH = δQ?

Consider a closed thermodynamic system capable of exchanging energy in the form of work only as PV work. Under these conditions, for an isobaric process we find that the heat exchanged equals the enthalpy change. Now what about the reverse? For such a system, if for some process the heat...

Thank you very much for your explanation.

Look also here. Could you explain that a little more? Because I thought the absolute temperature scale was a consequence of Carnot theorems.

Thank you very much for your help, I understand now what you meant. I guess my source of confusion is/was the way convection is defined in some books. For instance, in the book Thermodynamics, an engineering approach, from Çengel, we can read "Convection is the transfer of energy between a solid...

Now you have confused me. Why can't occur here mass transport of water? Isn't it a fluid??!

What is the *main* mechanism of heat transfer between a thermal resistance and water? My doubt arose in the context of a problem (from a high school national test) dealing with the following situation: a 500 W thermal resistance made of copper is immersed in a jar containing 500 g of water at...