Question

The thermal energy transpassing from or to a Particle is
a) Internal energy
b) Heat
c) Temperature
d) Specific internal heat

Answer 1

@Michele_Laino

Answer 2

I suspect it's a, but I am not sure.

Answer 3

every object has a contents of energy, and such energy is its internal energy. Nevertheless, in order to get internal energy changes, our object has to do work and make heat changes with othe objects

Answer 4

Internal energy.

Answer 5

yes I think so, nevertheless better is to associate internal energy to an object, not to a single particle

Answer 6

Why do we use temperature as a measurement of specific internal energy not internal energy ?

Answer 7

If we refer to an ideal gas, its content of internal energy is a function of a temperature, so a measure of temperature is equivalent to a measure of its internal energy. More precisely the internal energy of an ideal gas, is:
\[U = n{C_V}T\]
where \(n\) is number of moles, and \(C_V\) is the molar heat capacity at volume=constant

Answer 8

Doesn't the ideal gas doesn't exist ?

Answer 9

an ideal gas, doesn't exists, nevertheless we can reach the "ideal condition" for a gas for some values of temperature and pressure of such gas

Answer 10

But in ideal gas we neglect the volume of it and the area engaged by it and that doesn't happen in real life, In real life at low temperatures the gas turns into liquefied gas, am I mistaken ?

Answer 11

with high pressure.

Answer 12

If we start from a real gas and we increase the external pressure and we decrease the external temperature, then we get the liquefaction of that gas. Nevertheless for some gas it is not so, more precisely, in order to get the liquefaction of some gases, it is necessary to use the so called Linde machine. Using the Linde machine, the gas is subjected to a subsequently expansions, and the effect of those expansions is to decrease the temperature of our gas and then and to liquify it