Paul W. Zitzewitz, Todd George Elliott, David G. Haase
ISBN #9780078458132
1st Edition
2,782 Questions
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Convert the following Kelvin temperatures to Celsius temperatures. a. $115 \mathrm{K}$ c. $125 \mathrm{K}$ e. $425 \mathrm{K}$ b. $172 \mathrm{K}$ d. $402 \mathrm{K}$ f. $212 \mathrm{K}$
Find the Celsius and Kelvin temperatures for the following. a. room temperature c. a hot summer day in North Carolina b. a typical refrigerator d. a winter night in Minnesota
When you turn on the hot water to wash dishes, the water pipes have to heat up. How much heat is absorbed by a copper water pipe with a mass of $2.3 \mathrm{kg}$ when its temperature is raised from $20.0^{\circ} \mathrm{C}$ to $80.0^{\circ} \mathrm{C}$ ?
The cooling system of a car engine contains 20.0 L of water $(1 \mathrm{L}$ of water has a mass of $1 \mathrm{kg}$ ). a. What is the change in the temperature of the water if the engine operates until 836.0 k of heat is added? b. Suppose that it is winter, and the car's cooling system is filled with methanol. The density of methanol is $0.80 \mathrm{g} / \mathrm{cm}^{3}$. What would be the increase in temperature of the methanol if it absorbed $836.0 \mathrm{kJ}$ of heat? c. Which is the better coolant, water or methanol? Explain.
Electric power companies sell electricity by the kWh, where $1 \mathrm{kWh}=3.6 \times 10^{6} \mathrm{J}$ Suppose that it costs $\$ 0.15$ per kWh to run an electric water heater in your neighborhood. How much does it cost to heat 75 kg of water from $15^{\circ} \mathrm{C}$ to $43^{\circ} \mathrm{C}$ to fill a bathtub?