Question

1.Calculate the number of electrons consisting one coulomb of charge.(charge on 1 electron is 1.6x10-19)
2. Name the part of a bio gas plant where reactions take place in the absence of oxygen

Answer 1

For 1st part :-

⇒ q = ne

⇒ 1 = n × 1.6 × 10^-19

⇒ n = 0.62 × 10^19

Answer 2

Given that

Charge (Q) = 1 C

Electron (e) = 1.6× 10^-19

Number of electron (n) = ?

Q= ne

1 C = n × 1.6×10^-19 C

n = 1/(1.6×10^-19)

n = 6.25 × 10^18 electron