作业帮SAT2化学题,涉及randomnessIncreased randomness results under which of the following conditions?1.A 1L sample of He(g) and 1L sample of Ne(g) are mixed in a 2L flask.2.Ice melts.3.CaO(s) reacts with CO2(g) to form CaCO3(s).(A)1 only(B)2 only(C)1 a
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SAT2化学题,涉及randomnessIncreased randomness results under which of the following conditions?1.A 1L sample of He(g) and 1L sample of Ne(g) are mixed in a 2L flask.2.Ice melts.3.CaO(s) reacts with CO2(g) to form CaCO3(s).(A)1 only(B)2 only(C)1 a
SAT2化学题,涉及randomness
Increased randomness results under which of the following conditions?
1.A 1L sample of He(g) and 1L sample of Ne(g) are mixed in a 2L flask.
2.Ice melts.
3.CaO(s) reacts with CO2(g) to form CaCO3(s).
(A)1 only
(B)2 only
(C)1 and 2 only
(D)2 and 3 only
(E)1,2,and 3
我只知道3不对,但谁能给我解释一下1和2为什么正确呢?
SAT2化学题,涉及randomnessIncreased randomness results under which of the following conditions?1.A 1L sample of He(g) and 1L sample of Ne(g) are mixed in a 2L flask.2.Ice melts.3.CaO(s) reacts with CO2(g) to form CaCO3(s).(A)1 only(B)2 only(C)1 a
熵增加原理,一般来说,2种气体混合,你先假设这种状况:1个2升的大容器,中间有隔板,两边是不同气体
然后你抽去隔板,两种气体就要分别往对面扩散
这个扩散过程不可逆,熵（混乱度）增加
2 相变过程中的熵变 dS= Q/T =相变产生的热量（吸热为正）除以温度
冰融化过程属于吸热过程,因此,熵变的值也应该为正值,熵增加~
3你知道的话就不解释了