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4th Edition

James Stewart

Publisher: Cengage Learning

ISBN: 9781337687805

Chapter 1.1, Problem 18E

To determine

**To sketch:** A rough graph of the temperature of the pie as a function of time.

Expert Solution

**Given:**

A frozen pie is placed in an oven and baked for an hour. Then, it is taken out and cooled.

**Observation:**

Take the time in the *x*-axis and the temperature in the *y*-axis. Initially, when the pie is placed in an oven, the temperature of the pie increases and reaches the oven temperature. After it is taken out and cooled, the temperature of the pie decreases to room temperature. Thus, the rough graph of the temperature of the pie as a function of time is shown below in Figure 1.

From Figure 1, it is observed that the temperature is steadily increasing at the beginning, remains constant in the middle, then decreases, and stays constant at the end.