![](https://lstatic.shangxueba.com/jiandati/pc/images/pc_jdt_tittleico.png)
用对消法测得原电池 Zn│ZnSO4(a1)‖KCl(a2)│Ag—AgCl(s) 的电动势与温度关系为 E/V=1.0367-5.42×10-4(T/K-298) 则反应 Zn+2AgCl(s)=2Ag+ZnCl2 在 293.2 K 时的焓变为:
A.169.9 kJ/mol
B.-169.9 kJ/mol
C.-231.3 kJ/mol
D.231.3 kJ/mol
![](https://lstatic.shangxueba.com/jiandati/pc/images/jdt_q_ckda.png)
![](https://lstatic.shangxueba.com/jiandati/pc/images/jdt_panel_vip.png)
![](https://lstatic.shangxueba.com/jiandati/pc/images/jdt_q_wyda.png)
- · 有3位网友选择 B,占比33.33%
- · 有3位网友选择 D,占比33.33%
- · 有3位网友选择 A,占比33.33%