Which of the following changes will increase the emf of the cell : Co(s) | CoCl_2 (M_1)|| HCl(M_2) |Pt(H_2,g)
Calculate the emf of the cell at 298 K Sn_((s))|Sn^(2+)(0.05M)||H_((aq))^(+)(0.02M) |H_(2) 1 atm. Pt Given that E_(sn^(2+)//Sn)^(0)=-0.144V
If Delta G_(298K) for the reaction 2H_(2(g. 1atm)) + O_(2(g. 1atm)) rarr 2H_(2)O_((g.1atm)) is -240kJ , what will be Delta G_(298K) for the reaction H_(2)O_((g.0.2 atm)) rarr H_(2(g.4atm)) + (1)/(2) O_(2(g.0.26atm))
Balance the following equations in basic medium by ion-electron method and oxidation number methods and identify the oxidising agent and the reducing agent. (a) P_(4)(s) + OH^(-) (aq) rarr PH_(3) (g) + HPO_(2)^(-) (aq) (b) N_(2)H_(4)(I) + ClO_(3)^(-) (aq) rarr NO(g) + Cl^(-) (g) (c) Cl_(2)O_(7) (g) + H_(2)O_(2) (aq) rarr ClO_(2)^(-) (aq) + O_(2)(g) + H^(+)
Calculate Delta_(r)G for the reaction at 27^(@)C H_(2)(g)+2Ag^(+)(aq)hArr2Ag(s)+2H^(+)(aq) Given : P_(H2)=0.5 bar, [Ag^(+)]=10^(-5)M, [H^(+)]=10^(-3)M,Delta_(r)G^(@)[Ag^(+)(aq)]=77.1kJ//mol
The reaction obey 1 order with respect to H_(2) and Icl both H_(2(g))+2ICl_((g)) to 2HCl_((g))+I_(2(g)) Which of the following mechanism is consistent with the given fact ? Mechanism A : H_(2(g))+2ICl to 2HCl_((g))+I_(2(g)) Mechanism B : (i) H_(2(g))+ICl_((g)) overset ("slow") underset (HCl_((g))+HI_((g)))( to ) (ii) HI_((g))+ICl_((g)) to HCl_((g))+I_(2)
Amongst the chemical reaction given below, the reaction with increasing entropy are H_(2)O(l)rarr H_(2)O(g) C(s)+CO_(2)(g)rarr2CO(g) 2H_(2)(g)+O_(2)(g)rarr2H_(2)O(l) N_(2)(g)+O_(2)(g)rarr " Mixture of "N_(2)and O_(2)
