Quiz #2: Temperatur 3. You put a 50-g ice cube initially at a temperature of 0 C onto a frying pan. You keep the burner on at full blast for a long time. The ice cube completely melts, leaving a 50-g puddle of water. The puddle heats up from 0 C to 100 C, at which point it starts to boil. Eventually, the puddle of water completely boils away. Which took the most energy? (a) Melting the 0 C ice (b) Changing the temperature of the water from 0 .C to 100 .C (c) Boiling away the 100 C water (d) Each stage takes an equal amount of energy 4. In the morning, you step barefoot onto the bathroom floor. You put one foot on the tile, and one foot on the rug. The tile feels cooler than the rug. Why does the tile feel cooler? (a) The tile is a better conductor - it conducts heat away from your foot faster (b) The rug is a better conductor - it conducts heat to your foot faster from the floor (c) The tile and rug are both equally conductive; the tile is just at a lower temperature (d) The tile and rug are both equally conductive; the tile has a greater emissivity, e