Unformatted text preview: morning? Explain your answer. (HINT: Snow behaves like a black-body with respect to infra-red radiation.) (10 pts.) 3) In a lab experiment you note than an object experiences a steady increase in temperature with the passage of time. If that object is absorbing 100 units of radiant energy every second, what must be true about the amount it emits? Explain your answer with reference to the concept of radiative equilibrium . (10 pts.) 4) A friend of yours conducts an experiment in which she places a small beaker of fluid into a larger beaker of fluid and observes changes in the temperatures of the fluids. She tells you that the initial and final conditions of the experiment are represented by the diagrams labeled INITIAL and FINAL in Fig. 1. Is this an accurate statement? How can you be sure? Explain your answer in terms of the Second Law of Thermodynamics. (10 pts.)...
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This document was uploaded on 02/17/2011.
- Spring '11