Consider these two entries from a fictional table of standard reduction potentials. X3++3e−⟶X(s)o=−1.95 V

Y3++3e−⟶Y(s)o=−0.19 V

What is the standard potential of a galvanic (voltaic) cell where X is the anode and Y is the cathode?

answer;

18.5 seconds

explanation;

velocity is distance covered per unit time; it is given by displacement divided by time.

thus; time = displacement/velocity

total time = total displacement/velocity

total distance = 5000 meters south

total time = 5000/4.5

                  = 1111.11 seconds

but; 1 minute = 60 sec

thus; 1111.11 /60

                = 18.51 seconds

thus; the time taken is 18.5 seconds