Hydrogen is produced by the reaction: CO(g) + H 2 O(g) → CO 2 (g) + H 2 (g). The feed stream to the reactor is an equimolar mixture of carbon monoxide and steam, and it enters the reactor at 125°C and atmospheric pressure. If 60% of the H2O is converted to H2 and if the product stream leaves the reactor at 425°C, how much heat must be transferred to or from the reactor?