Answer:
Explanation:
Faraday’s constant can be used to convert the charge (Q) into moles of electrons (n). The charge is the current (I) multiplied by the time
Q = I × t = n × F
Where
Q is charge
I is current = 0.2A
t is time = ?
n is number of mole
F is Faraday constant = 96500C/s
Mass of Au = 0.4 g = 0.0004kg
Molar mass of Au = 197 g/mol
Malar mass = mass / mole
n = 0.4 / 197
n = 2.03× 10^-3 mol
n = 0.00203 mol
t = n × F / I
t = 0.00203 × 96500 / 0.2
t = 979.7 seconds
t = 16.32 minutes.
9.8m/s^2, i’m not sure what you are asking
Kinetic energy because, the object is in motion.
