Carbon black is produced by the decomposition of methane:
![373_d6e1b1d8-05e8-412f-85c1-0dd8d9de6b51.png](https://secure.tutorsglobe.com/CMSImages/373_d6e1b1d8-05e8-412f-85c1-0dd8d9de6b51.png)
For equilibrium at 923.15 K (650°C) and 1 bar,
(a) What is the gas-phase composition if pure methane enters the reactor, and what fraction of the methane decomposes?
(b) Repeat part (a) if the feed is an equimolar mixture of methane and nitrogen.