If the system goes through a series of changes and finally returns to the initial state, which option is correct about the change of the thermodynamic functions of the system? ( )
A: Q=0, W=0, ΔU=0, ΔH=0
B: Q=0, W=0, ΔU=0, ΔG=0
C: ΔU=0, ΔH=0, ΔG=0, ΔS=0
D: Q=W, W=0, ΔU=0, ΔH=0
A: Q=0, W=0, ΔU=0, ΔH=0
B: Q=0, W=0, ΔU=0, ΔG=0
C: ΔU=0, ΔH=0, ΔG=0, ΔS=0
D: Q=W, W=0, ΔU=0, ΔH=0
举一反三
- 如果系统经过一系列的变化,最后回到起始状态,则系统的? Q = W,ΔU = Q,Δ W=0,ΔH = 0|ΔU = 0,ΔH = 0,ΔG = 0,ΔS = 0;;|Q = 0,W= 0,ΔU = 0,ΔH = Q|Q = 0,W = 0,ΔU = 0,ΔH = 0
- 理想气体自由膨胀过程中() A: W=0,Q〉0,ΔU〉0,ΔH=0 B: W〉0,Q=0,ΔU〉0,ΔH〉0 C: W〈0,Q〉0,ΔU=0,ΔH=0 D: W=0,Q=0,ΔU=0,ΔH=0
- 如果系统经过一系列的变化,最后回到起始状态,则系统的 A: Q = 0,W = 0,ΔU = 0,ΔH = 0 B: Q = 0,W= 0,ΔU = 0,ΔH = Q C: ΔU = 0,ΔH = 0,ΔG = 0,ΔS = 0 D: Q = W,ΔU = Q,Δ W=0,ΔH = 0
- 封闭系统经历一循环后,其( ) A: Q=0,W=0,ΔU=0,ΔH=0 B: Q≠0,W≠0,ΔU=0,ΔH=Q C: Q=-W,ΔU=Q+W,ΔH=0 D: Q≠W,ΔU=Q+W,ΔH=0
- 封闭系统经过一循环过程后,其()。 A: Q=0,W=0,ΔU=0,ΔH=0 B: Q≠0,W≠0,ΔU=0,ΔH=Q C: Q=-W,ΔU=Q+W,ΔH=0 D: Q≠W,ΔU=Q+W,ΔH=0