The essential principle difference between the W and canonical Ensemble is that in the former the energy of the system is constant E, while in the latter the energy fluctuates in such a way that the value of the internal energy corresponding to the thermodynamic state of U= (E), the system is the expected value of its energy, Let us now examine this difference in the case of an ideal gas. Let the number of particles in the gas be N, the temperature T and the volume V. Determine the relative W (rootmeansquare) of the energy fluctuation for the gas. 3Erms _ \"(E(1)2\" U _ U 1/2 what is the magnitude of the fluctuations with the macroscopic number of particles