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PS 11

PS 11

Q Question 1 2 / 2 pts For each pair of substances, select the substance with more thermal energy and explain why. Question 2 2 / 2 pts For each pair of substances, select the substance that will take more energy to heat from 20 oC to 100 oC and explain why. Question 3 2 / 2 pts Explain why a can of soda from the refrigerator feels cold in your hand. Question 4 2 / 2 pts How much heat (in kJ) must be absorbed by a 402 g pot of water in order to raise the temperature from 14 oC to 34 oC? Question 5 2 / 2 pts Convert 125 oF to oC and Kelvin . Convert 57 K to Celsius and Fahrenheit . Don't forget units! (You can use C in place of oC; likewise for F).

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1.500 g at 85 oC and 500 g at 35 oC because thermal energy increases with temperature and mass 2.300 g water due to higher mass with same substance; 500 g iron because it has a higher specific heat and the same mass