Q1
The Boltzmann formula is S=klnW. A perfect crystal has a molar
entropy of 0 at absolute zero because
(A)W=0. (B)W=1. (C)W=NA. (D)k=1.
ans:(B) 為什麼呢?
Q2Which provides the greatest increase in entropy?
(A) H2O (s,0℃) ===> H2O (l,0℃)
(B) H2O (l,0℃) ===> H2O (l,25℃)
(C) H2O (g,0.1℃) ===> H2O (s,0.1℃)
(D) H2O (l,100℃) ===> H2O (g,100℃)
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 211.74.220.113