Afeed stream consisting of 2.300% argon (by mole) and stoichiometric proportion of the reactants is fed into the system at the rate of 100 mol/min. the components enter a reactor, and then all ammonia is separated from the other components and leaves the process. the other components are recycled back to the feed stream, with a portion being purged from the system. the mole percentage of argon in the purge stream is 4.900%, and the conversion per pass in the reactor is 12.00%. what is the production rate of ammonia?

answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol