physics問題

Q: pV=nRT--->n,V 係代表咩
A: n is the no. of moles of the gas, V is the volume of gas.

Q: pV=(Nmc^2)/3--->N,m,c 代表咩
A: N is the no. of gas molecules in volume V of the gas.
m is the mass of a gas molecule, c is the root-mean-square speed of gas molecules.

Q: E=(RT/N)(3/2) ---> N 代表咩
A: If E is the kinetic energy of a molecule, then N is Avogadro's Number (the no. of molecules in 1 mole of gas).

Q: 點先有momentum loss?
A: momentum is not conserved if there is an external force acting.

pV=nRT--->n,V 係代表咩
n=摩爾數(mol)， V係volume(m^3)

pV=(Nmc^2)/3--->N,m,c 代表咩
N=粒子數目, m=單一粒粒子質量(kg), c=粒子的RMS速度

E=(RT/N)(3/2) ---> N 代表咩
N=粒子數目

momentum loss: momentum=mv, 要有loss咪loss v囉(Newtonian Mechanics)