[TheShehanigan]

Hey guys,

I've got a problem, and I need some help decyphering it out.

"Certain system suffers a process, where it's entropy increases to 5.51 J/K. During the process, 1.50 kJ of heat is added to the system at 350K. Based on the given information, decide if the process is reversible or irreversible, and explain your answer."

I am more interested in the explanation part. I've calculated the entropy of said situation using the given data using dS = dq_rev/T, assuming the heat added is reversible. As the calculated entropy, I get: 4.29 J/K. Thus, because these two numbers don't agree, I can intermediately say the process should not be reversible, and there must be some external factor in play to increase the entropy even more. Problem is, I get stuck at this point in my reasoning.

Any help/hints so I may move in the right direction?