Which of the following statements a true about a voltaic cell for which E degree

Question

Which of the following statements a true about a voltaic cell for which E degree _cell = 1.00 V? It has delta G degree > 0. The system is at equilibrium. it has K = 1. The cathode is at a higher energy than the anode. The reaction is spontaneous. Which of the following statements about batteries is false? A battery is a group of galvanic cells connected in series. Lead storage batteries contain lead at the anode and lead coated with lead dioxide at the cathode. The alkaline dry cell battery can last longer than a nickel-cadmium battery. A fuel cell is a galvanic cell for which the reactants are continuously supplied. Dry cell batteries are used in tape players and portable radios. Balance the following redox equation in acidic solution What is the coefficient of the H^+ ion? CH_3 OH(aq) + Cr_2 O_7^2- (aq) rightarrow CH_2 O(aq) + Cr^3+(aq) 1 2 3 4 8 Balance the following redox equation in acidic solution. What is the coefficient of the H^+ ion? MnO_4^- (aq) + H_2 O_2 (aq) right

Explanation / Answer

Answer to question 10

So we have a voltaic cell with Eo = 1 V

Now we know that Go = -n*F*Eo = -n*F *1 =-nF , we know F is 96500 and n>=1 , SO Go will always be negative Go<0. hence the reaction is always spontaneous

In voltaic cell , the cell is at not at equilibrium initially but is at equilibrium after a long time and

G = Go + RT lnK

So K can have any value .

Energy at anode is same as cathode as both involve same number of electrons.

So options A and E are correct.

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