A vessel at 1000 K contains CO(2) with ...

A vessel at 1000 K contains `CO_(2)` with a pressure of 0.5 atm. Some of `CO_(2)` is converted into CO on addtion of graphite. The value of 'K at equilibrium when total pressure is 0.8 atm will be

0.18 atm

1.8 atm

2 atm

1 atm

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