
What are Negative Absolute Temperatures - Physics Forums
May 29, 2015 · It’s a famous result in thermodynamics that you can’t reach absolute zero no matter how hard you try. Also, the definition of absolute zero makes it obvious that it’s meaningless to talk about …
What is absolute temperature? - Physics Forums
Dec 6, 2004 · The absolute temperature scale is in Kelvin as others have said. On this scale, 0 K is the coldest anything can ever get. It's the same scale as celcius (centigrade) except you have to add …
Why must we use absolute temperature for the Ideal Gas Law?
May 8, 2023 · For this problem, The solution is, However, why must we use absolute temperature for the ideal gas law (i.e why can we not use Celsius for T) Many thanks!
What Happens at Absolute Zero Temperature? - Physics Forums
May 6, 2006 · Absolute zero is defined as the temperature at which no heat exchange occurs in a reversible isothermal process. At this temperature, the Ideal Gas Law suggests that both pressure …
Why Must We Use Absolute Temperature for Ideal Gas Law?
Dec 1, 2007 · Question Why must we use absolute temperature in the ideal gas law (PV = NkT)? Why using the Celsius scale would give nonsensical results? I am not sure what is the reason, can …
Does Resistance Truly Reach Zero at Absolute Zero?
Jul 23, 2012 · I was wondering, since resistance decreases along with temperature for most metallic conductors (usually power function), in theory, if this conductor were to be at zero kelvin, would the …
How was absolute 0 calculated? • Physics Forums
Oct 22, 2008 · Absolute zero, defined as -273.15 degrees Celsius or 0 Kelvin, was derived through thermodynamic relationships and extrapolation of gas behavior, particularly using the ideal gas law. …
Absolute Zero: Lowest Possible Temp? Evidence Explained
Dec 29, 2006 · Temperature is a measure of the kinetic energy (movement) of the particles in a substance. Theoretically, absolute zero is the temperature at which everything stops moving, making …
Empirical temperature scales using different thermometers
Sep 30, 2023 · It took me a while to understand (I think) the concepts below. I have two questions. 1) What does "absolute" mean in the term "absolute temperature scale"? 2) What is the difference …
Absolute temperature for average translational kinetic energ
Sep 18, 2016 · Homework Statement The ammonia molecule (NH3) has a dipole moment of 5.0×10−30C⋅m. Ammonia molecules in the gas phase are placed in a uniform electric field E⃗ with …