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1. A 60 kg woman whose average power is 30 W can climb a mountain 2.0 km high in A. 10 h B. 1.1 h C. 5.4 h D. 11 h 2. A rod 2 m long expands 1 mm when heated from 8 degree Celsius to 70 degree Celsius. What is the coefficient of linear expansion of the material from which the rod is made? A. 5.9 * 10^-5 / degree Celsius B. 7.9 * 10^-6 / degree Celsius C. 8.4 * 10^-4 / degree Celsius D. 6.7 * 10%-7 / degree Celsius 3. A rectangular brass plate has a dimension of 50 cm x 30 cm at 10 degree Celsius. At what temperature should it be heated to increase its area by 0.05 mm*2? A. 10.01 degree Celsius B. 11.06 degree Celsius C. 8.90 degree Celsius D. 7.95 degree Celsius 4. How much heat is needed to raise 5 grams of aluminum by 20 degree Celsius? Caluminum=0.900 J/g * degree Celsius A. 60] B. 70] C. 80 ] D. 90 ] 5. Calculate the minimum amount of energy, in joules, required to completely melt 130 g of silver at 15 degree Celsius A. 56.75 kJ B. 42.7 KJ C. 73.9 kJ D. 86.00 KJ6. Ethyl alcohol has a boiling point of 78 degree Celsius, a freezing point of -114 degree Celsius, a heat of vaporization of 879 kJ/kg, a heat of fusion of 109 kJ/kg, and a specific heat of 2.43 KJ/kg-K. how much energy must be removed from 0.510 kg of ethyl alcohol that is initially a gas at 78 degree Celsius so that it becomes a solid at -114 degree Celsius? A. 742 kJ B. 842 KJ C. 726 KJ D. 826KJ 7. You want to prepare a cup of tea. To do so, you pour 100mL of tap water at 20 degree Celsius in a cup that does not absorb microwave radiation and heat it in a microwave oven at 700W of power. If you assume a density of 1.00gmL for the water and know that its specific heat capacity is 4.1841/g * degree Celsius, what time do you need to set in the microwave oven to heat the water to 60 degree Celsius? A. 53.95 B. 64.65 C. 12.58 5 D. 23.95 B. A 20g sample of iron at a temperature of 120 degree Celsius is placed into a container of water. There are 300 milliliters of water in the container at a temperature of 30 degree Celsius. [Ciron=0.444J/goC] [Cwater=4.1841/goC]_[owater=1gmL] What is the final temperature of the water? A. 30.63.C B. 34.87.C C. 36.0OC D. 114.0 C 9. What amount of heat is required to raise the temperature of 200.0 g of aluminum by 10 degree Celsius? (specific heat of aluminum = 0.21 cal/g * degree Celsius) A. 420 cal B. 4200 cal C. 42,000 cal D. 420,000 cal10. The specific heat of silver is 0.24 J/g * degree Celsius. How many joules of energy are needed to warm 4.37 g of silver from 25 degree Celsius to 27.5 degree Celsius? A. 2.62J B. 0.14J C. 45.51 D. 0.022J