在温度T时φ(Hg<sub>2</sub><sup>2+</sup>/Hg)=a,Hg<sub>2</sub>SO<sub>4</sub>的溶度积为K<sub>sp</sub>,则φ(Hg<sub>2</sub>SO<sub>4</sub>/Hg)为:()。
A、a+(RT/2F)lnKsp
B、a-(RT/2F)lnKsp
C、a+(RT/F)lnKsp
D、a-(RT/F)lnKsp
A、a+(RT/2F)lnKsp
B、a-(RT/2F)lnKsp
C、a+(RT/F)lnKsp
D、a-(RT/F)lnKsp
A、a+(RT/2F)lnK<sub>spsub> B、a-(RT/2F)lnK<sub>spsub> C、a+(RT/F)lnK<sub>spsub> D、a-(RT/F)lnK<sub>spsub>
A、φ<sub>1sub>〉φ<sub>2sub>〉φ<sub>3sub> B、φ<sub>2sub>〉φ<sub>1sub>〉φ<sub>3sub> C、φ<sub>3sub>〉φ<sub>2sub>〉φ<sub>1sub> D、φ<sub>1sub>=φ<sub>2sub>=φ<sub>3sub>
A、Cd2++2e→Cd B、PbSO<sub>4sub>(s)+2e→Pb+SO<sub>4sub>2- C、Hg<sub>2sub>SO<sub>4sub>(s)+2e→2Hg(l)+SO<sub>4sub>2- D、Hg<sub>2sub>Cl<sub>2sub>(s)+2e→2Hg(l)+2Cl-
A、t<sub>1/2sub>=t<sub>1/2sub>’ B、t<sub>1/2sub>〉t<sub>1/2sub>’ C、t<sub>1/2sub>〈t<sub>1/2sub>’ D、两者大小无法确定
A、{T<sub>(1)sub>≥t<sub>0sub>} B、{T<sub>(2)sub>≥t<sub>0sub>} C、{T<sub>(3)sub>≥t<sub>0sub>} D、{T<sub>(4)sub>≥t<sub>0sub>}
A、t<sub>1/2sub>=t<sub>1/2sub>’ B、t<sub>1/2sub>>t<sub>1/2sub>’ C、t<sub>1/2sub><t<sub>1/2’ D、两者大小无法确定t<sub>
A、电极反应为Hg<sub>2sub>2++2e→Hg; B、属于第一类电极; C、对阴离子可逆,电极电势较稳定; D、电极电势为φ(Hg<sub>2sub>Cl<sub>2sub>)=φ0(Hg<sub>2sub>Cl<sub>2sub>)+(RT/2F)lna(Cl-)
A、两流体温度差(T-t) B、冷流体进、出口温度差(t<sub>2sub>-t<sub>1sub>) C、热流体进、出口温度差(T<sub>2sub>-T<sub>1sub>) D、液体温度和管壁温度差(T-T<sub>Wsub>)或(t<sub>wsub>-t)