- 1 -
鍙屽熀闄愭椂缁?/p>
(
涓?/p>
)
鍖栧鍙嶅簲鐑殑璁＄畻
1
锛庡凡鐭?/p>
(1)H
2
(g)
锛?/p>
1
2
O
2
(g)===H
2
O(g)
螖
H
锛?/p>
a
kJ路
mol
锛?/p>
1
(2)2H
2
(g)
锛?/p>
O
2
(g)===2H
2
O(g)
螖
H
锛?/p>
b
kJ路
mol
锛?/p>
1
(3)H
2
(g)
锛?/p>
1
2
O
2
(g)===H
2
O(l)
螖
H
锛?/p>
c
kJ路
mol
锛?/p>
1
(4)2H
2
(g)
锛?/p>
O
2
(g)===2H
2
O(l)
螖
H
锛?/p>
d
kJ路
mol
锛?/p>
1
涓嬪垪鍏崇郴寮忎腑姝ｇ‘鐨勬槸
(
)
A
锛?/p>
a
<
c
<0
B
锛?/p>
b
>
d
>0
C
锛?/p>
2
a
锛?/p>
b
<0
D
锛?/p>
2
c
锛?/p>
d
>0
绛旀
C
瑙ｆ瀽
姘㈡皵鐨勭噧鐑ф槸涓�涓斁鐑繃绋嬶紝鎵�浠ュ叾
螖
H
<0
锛屽嵆
a
銆?/p>
b
銆?/p>
c
銆?/p>
d
鍧囧皬浜?/p>
0
锛?/p>
姘寸敱姘旀�佸埌娑叉�佺殑杩囩▼锛?/p>
涔熸槸涓�涓斁鐑繃绋嬶紝
鏁?/p>
b
>
d
锛?/p>
a
>
c
銆?/p>
鐢?/p>
(1)
銆?/p>
(2)
鍙?/p>
(3)
銆?/p>
(4)
鍙嶅簲涓墿璐ㄧ殑閲忓強鐗╄川鐨勮仛闆嗙姸鎬佺煡锛?/p>
b
锛?/p>
2
a
锛?/p>
d
锛?/p>
2
c
銆?/p>
鎵�浠ョ瓟妗堜负
C
椤广�?/p>
瀵圭儹鍖栧鍙嶅簲鏂圭▼寮忎腑鐨勭儹閲忓�艰繘琛屾瘮杈冩椂锛?/p>
搴旀敞鎰忔瘮杈冪殑鏄?/p>
螖
H
杩樻槸浠呮瘮杈冩暟鍊肩殑澶у皬銆?/p>
鑻ユ瘮杈?/p>
螖
H
锛?/p>
鍒欒繕搴旀敞鎰?/p>
璇ュ弽搴旀槸鍚哥儹鍙嶅簲杩樻槸鏀剧儹鍙嶅簲锛岃嫢涓烘斁鐑弽搴旓紝杩樿鑰冭檻
螖
H
鍓嶇殑
璐熷彿銆?/p>
2
锛庡凡鐭ョ儹鍖栧鏂圭▼寮忥細
C(
閲戝垰鐭筹紝
s)
锛?/p>
O
2
(g)===CO
2
(g)
螖
H
1
鈶?/p>
C(
鐭冲ⅷ锛?/p>
s)
锛?/p>
O
2
(g)===CO
2
(g)
螖
H
2
鈶?/p>
C(
鐭冲ⅷ锛?/p>
s)===C(
閲戝垰鐭筹紝
s) 螖
H
3
锛濓紜
1.9 kJ路
mol
锛?/p>
1
鈶?/p>
涓嬪垪璇存硶姝ｇ‘鐨勬槸
(
)
A
锛庣煶澧ㄨ浆鍖栨垚閲戝垰鐭崇殑鍙嶅簲鏄惛鐑弽搴?/p>