1. (1 pt) Multiple-choice Questions A. In a system consisting of species A and B, for which condition are N₁ and J₁ equal or nearly equal? a When N= N b. When Ng=-N₁ c. When N * 0, and species A is very dilute (x<<1) d. When (b) or (c) is true B. For flow of a cool fluid through a tube with hot walls, would decreasing the flow rate of the fluid though the tube cause the heat-transfer rate to a. increase? b. decrease? c. not change?

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