Methane and water vapor can react to form carbon monoxide an

Methane and water vapor can react to form carbon monoxide and hydrogen gas according to the reaction CH4 g) + H2O g) He 206.1 kl/mol and AS-2 14.5 J/mol x K, what is G° for this reaction at 25.00°C? CO +3 Hdr Select one: O a. -5156 kJ/mol b.-8.400 kJ/mol OC.-6.375 x 10+ KJ/mol d. +142.1 KJ/mol e. +205.9 kl/mol Next page ge

Solution

Using, gibbs relation,

G = H - tS

Where G = chnage in gibbs energy

H = change in enthalpy

S = change in entropy

Putting the respective values, we get

G = 206.1 kJmol-1 - (25+273)k ( 0.2145)Jmol-1k-1

G = 142.1 kJmol-1

So, option D is the correct choice.