Solveeit Logo
Login

Question

Question: From the Ellingham graph between Gibb’s energy and temperature out of C and CO which is a better red...

From the Ellingham graph between Gibb’s energy and temperature out of C and CO which is a better reducing agent for ZnO?

A

Carbon

B

CO

C

Both of these

D

None of these

Answer

Carbon

Explanation

Solution

The free energy of formation CO2\mathrm { CO } _ { 2 } from C becomes lower above 1270 K than CO2\mathrm { CO } _ { 2 } from COis always higher than that of ZnO. Hence, C can reduce ZnO to Zn but not CO.