Answer:
Value of
is 0.090.
Explanation:
Initial molarity of
=
= 0.0700 M
Construct an ICE table corresponding to the combustion reaction of carbon to determine 

I (M): - 0.0700 0
C (M): - -x +2x
E (M): - 0.0700-x 2x
So,
, where [CO] and
represents equilibrium concentration of CO and
respectively.
Here, ![[CO]=2x=0.060](https://tex.z-dn.net/?f=%5BCO%5D%3D2x%3D0.060)
⇒x = 0.030
So,
= 0.0700-x = (0.0700-0.030) = 0.040
Hence, 
A gaseous product is formed