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Which of the following choices correctly identifies the following three heat transfer processes? Heat transferred from the Sun to the Earth A metal spoon heating up when placed in a pot of hot soup A rising plume of smoke from a fire a. I. Radiation; II. Conduction; III. Convection b. I. Conduction; II. Radiation; III. Convection c. I. Radiation; II. Convection; III. Conduction d. I. Convection; II. Conduction; III. Radiation

What is the final temperature of a 3 kg wrought iron fireplace tool that is left in front of an electric heater, absorbing heat energy at a rate of \(100 \mathrm{W}\) for 10 minutes? Assume the pendant is initially at \(20^{\circ} \mathrm{C}\) and that the specific heat of wrought iron is \(233 \frac{\mathrm{J}}{\mathrm{kg} \cdot \mathrm{K}}\) a. \(40^{\circ} \mathrm{C}\) b. \(50^{\circ} \mathrm{C}\) c. \(60^{\circ} \mathrm{C}\) d. \(70^{\circ} \mathrm{C}\)

How much heat is required to completely melt 500 g gold earrings, given that their initial temperature is \(25^{\circ} \mathrm{C} ?\) (The melting point of gold is \(1064^{\circ} \mathrm{C}\), its heat of fusion is \(1.05 \times 10^{5} \frac{\mathrm{J}}{\mathrm{kg}}\). and its specific heat is \(126 \frac{\mathrm{J}}{\mathrm{kg} \cdot \mathrm{K}}\) a. \(15 \mathrm{kJ}\) b. \(32 \mathrm{kJ}\) c. \(66 \mathrm{kJ}\) d. \(97 \mathrm{kJ}\)

A student making a coffee cup calorimeter fails to use a second coffee cup and inadequately seals the lid. What was her initial goal, and what was the result of this mistake? a. She was trying to create an isolated system but created an open system instead. b. She was trying to create an isolated system but created a closed system instead. c. She was trying to create a closed system but created an open system instead. d. She was trying to create a closed system but created an isolated system instead.