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1. If an object with an initial temperature of 300 K increases its temperature by 1°C every minute, by how many degrees Fahrenheit will its temperature have increased in 10 minutes?
2. Which of the following choices correctly identifies the following three heat transfer processes?
I. Heat transferred from the Sun to the Earth
II. A metal spoon heating up when placed in a pot of hot soup
III. A rising plume of smoke from a fire
3. A 20 m steel rod at 10°C is dangling from the edge of a building and is 2.5 cm from the ground. If the rod is heated to 90°C, will the rod touch the ground? (Note: α = 1.1 × 10-5 K-1)
4. What is the final temperature of a 5 kg silver pendant that is left in front of an electric heater, absorbing heat energy at a rate of 100 W for 10 minutes? Assume the pendant is initially at 20°C and that the specific heat of silver is
5. How much heat is required to completely melt 500 g gold earrings, given that their initial temperature is 25°C? (The melting point of gold is 1064°C, its heat of fusion is and its specific heat is
6. Given the cycle shown, what is the total work done by the gas during the cycle?
7. In an adiabatic compression process, the internal energy of the gas:
8. The entropy of a system can:
9. A student making a coffee cup calorimeter fails to use a second coffee cup and incompletely seals the lid. What was her initial goal, and what was the result of this mistake?
10. A certain substance has a specific heat of and a melting point of 350 K. If one mole of the substance is currently at a temperature of 349 K, how much energy must be added in order to melt it?
11. Which of the following is NOT a state function?
12. The figure shown depicts a thick metal container with two compartments. Compartment A is full of a hot gas, while compartment B is full of a cold gas. What is the primary mode of heat transfer in this system?
13. Substances A and B have the same freezing and boiling points. If solid samples of both substances are heated in the exact same way, substance A boils before substance B. Which of the following would NOT explain this phenomenon?
14. In experiment A, a student mixes ink with water and notices that the two liquids mix evenly. In experiment B, the student mixes oil with water; in this case, the liquids separate into two different layers. The entropy change is:
15. Which of the following processes is LEAST likely to be accompanied by a change in temperature?
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