1. (5 pts) The utilization of Fourier's law for conduction does not only allow you to calculate heat transfer rates, but to infer information from temperature profiles. Consider the temperature profile

shown on the right. If the angle formed by the temperature curve and the vertical axis is 90°, which of the following is true at the left side of the wall? a. There is heat transfer toward the right There is heat transfer toward the left b. There is zero net heat transfer at that location c. d. Unable to tell X