For the reaction, 2cr2+ + cl2(g) > 2cr3+ + 2cl- e cell (standard conditions) = 1.78v calculate ecell (standard conditions) for the related reaction cr3+ + cl- > cr2+ + 1/2cl2(g)
a. 0.89 v
b. - 0.89 v
c. 1.78 v
d. - 1.78 v
e. non of these

-1.78 V

Explanation:

There are several rules required to calculate the cell potential:

That said, notice that the initial reaction with respect to the final reaction is:

Thus, we have a cell of E = -1.78 V.

the answer is   c.) 1575 j.

explanation:

answer : (a) volume of the gas = 8.67 ×   l

                (b) second virial coefficient b = -1.21226 l/mole

solution :   given,     t = 300k

                                p = 20atm

                                z = 0.86

                                n = 8.2 mmoles = 8.2 × moles

                                r =   0.082 l atm/k/mol

        find,     (a) volume of gas   and (b) second virial coefficient b at 300k.

formula used :            

                          and            

(a)            

                    = \times 0.082\times 300}{20}[/tex]

                    = 8.67 ×   l

(b)      

                    = (0.00867-1) × 8.659

                    = - 8.5839 l/mole