在 、 压力下,生石膏的脱水反应为
$\text{CaS}{{\text{O}}_4}\cdot 2{{\text{H}}_2}\text{O}{{\left( \text{s} \right)}=}\text{CaS}{{\text{O}}_4}\left( \text{s} \right)+2{{\text{H}}_2}\text{O}\left( \text{g} \right)$
试计算该反应进度为 时的 $Q$、$W$、$\Delta {{U}_{\text{m}}}$、$\Delta {{H}_{\text{m}}}$、$\Delta {{S}_{\text{m}}}$、$\Delta {{A}_{\text{m}}}$ 及 $\Delta {{G}_{\text{m}}}$。已知各物质在 、 的热力学数据如下表所示:
| 物质 | $\dfrac{{{\Delta }_{\text{f}}}H_{\text{m}}^{\ominus }}{\text{kJ}\cdot \text{mo}{{\text{l}}^{-1}}}$ | $\dfrac{S_{\text{m}}^{\ominus }}{\text{J}\cdot \text{mo}{{\text{l}}^{-1}}\cdot {{\text{K}}^{-1}}}$ | $\dfrac{{{C}_{p, \text{m}}}}{\text{J}\cdot \text{mo}{{\text{l}}^{-1}}\cdot {{\text{K}}^{-1}}}$ |
| $\text{CaS}{{\text{O}}_4}\cdot 2{{\text{H}}_2}\text{O}\left( \text{s} \right)$ | $-2021.12$ | $193.97$ | $186.20$ |
| $\text{CaS}{{\text{O}}_4}\left( \text{s} \right)$ | $-1432.68$ | $106.70$ | $99.60$ |
| ${{\text{H}}_2}\text{O}\left( \text{g} \right)$ | $-241.82$ | $188.83$ | $33.58$ |
26.在600K,100 kPa压力下,生石膏的脱水反应为-|||-(O)_(4)cdot 2(H)_(2)O(s)arrow CaS(O)_(4)(s)+2(
26.在600K,100 kPa压力下,生石膏的脱水反应为-|||-(O)_(4)cdot 2(H)_(2)O(s)arrow CaS(O)_(4)(s)+2(
在 600 K、100 kPa 压力下,生石膏的脱水反应为CaSO4⋅2H2O(s)=CaSO4(s)+2H2O(g)试计算该反应进度为 1 mol 时的 Q、
4-13 273K时,反应-|||-(Cl)_(2)cdot 6(H)_(2)O(s)leftharpoons (S)_(r)(Cl)_(2)cdot 2(H)
4.9某化合物A的水合晶体A·3H2 O脱水反应过程为-|||-cdot 3(H)_(2)O(s)=!=!= Acdot 2(H)_(2)O(s)+(H)_(2
例3 298K和p^θ压力下,有化学反应:-|||-_(2)S(O)_(4)(s)+(H)_(2)((O)^6)=2Ag(s)+(H)_(2)S(O)_(4)(
已知298 K时反应:3 ( Fe(s)) + 4 ( H)_2(O(g)) = (Fe)_3(O)_4((s)) + 4 ( H)_2((g))Delta_(
(2) _(2)(O)_(2)+(I)^-+(H)^+ →-|||-(4) FeCl3+H2S- →-|||-(6) +HN(O)_(3) (浓)→-|||-(
已知 (298 K) 时 φ⊖Ag+| Ag=0.799 V,电池 (Pt)|({{H)}_2}|({{H)}_2}(S)({{O)}_4}((aq))|(A)
(1)实验I:定性探究影响化学反应速率的外界-|||-因素-|||-实验原理-|||-_(2)(S)_(2)(O)_(3)+(H)_(2)S(O)_(4)=(N