Calculate the potential of the following cell reaction at 298K: Sn^(4+)(1.50M)+Zn(s)rarrSn^(2+)(0.5M)+zn^(2+)(2.0M) The standard potential of the cell is 0.89V, will the potential of the cell will increase or decrease if the concentration of Sn^(2+) is increased in the cell?
In the circuit show in the figure E,F,G and H are cells of e.m.f. 2,1,3 and 1 V and their internal resistances are 2,1,3 and 1Omega respectively. Calculate the potential difference across the terminals of each of the cells G and H.
Calculate the heat produced (in kJ) when 224 gm of CaO is completely converted to CaCO_(3) by reaction with CO_(2) at 27^(@) in a container of fixed volume. Given : DeltaH_(f)^(@)(CaCO_(3),s)=-1207kJ//mol," "DeltaH_(f)^(@)(CaO,s)=-635kJ//mol DeltaH_(f)^(@)(CO_(2),g)=-394kJ//mol,["Use R"=8.3JK^(-1)mol^(-1)]
The decomposition of N_2 O_5 in carbon tetrachloride solution has been found to be first order with respect to N_2 O_5 with rate constant, k-6.2xx10^-4s6-1 N_2 O_5(G)rarr2NO_2(g)+1/2O_2(g) Calculate the rate of reaction when [N_2 O_5]=2.50mol L^-1
Calculate the enthalpy of transition when C (diamond) changes to C (graphite) given that enthalpies of combustion of C (diamond) and C (graphite) are - 393.5 and -395.4 KJ mol^(-1) respectively.
Heat change for a reaction N_(2)(g) + 3H_(2) (g) to 2NH_(3)(g) is - 92.2 kj/mol. Calculate the heat of formation of one mole of a ammonia.
The E^(@) at 25^(@) C for the following reaction is 0.55 V. Calculate the DeltaG^(@) in kJ // mol : 4BiO^(+)(aq)+3N_(2)H_(5)^(+)to4Bi(s)+3N_(2)(g)+4H_(2)O(l)+7H^(+)
The standard enthalpy of formation of octane (C_(8)H_(18)) is -250kJ //mol . Calculate the enthalpy of combustion of C_(8)H_(18) . The enthalpy of formation of CO_(2)(g) and H_(2)O(l) are -394 kJ//mol and -286kJ//mol respectively.
