20. Heat and Temperature
Heat Transfer
- Multiple ChoiceWhat is most likely to happen when moist air is forced up the windward side of a mountain?157views
- Multiple ChoiceIn which of the following situations would a person lose heat by conduction?158views
- Multiple ChoiceHow do ocean gyres contribute to the redistribution of heat around the Earth?153views
- Multiple ChoiceWhy doesn't a microwave oven make a plastic dish get hot?202views
- Multiple ChoiceWhat happens to most of the incoming solar energy on Earth?215views
- Multiple ChoiceWhich of the following is the best description of conduction?134views
- Multiple ChoiceDuring exercise, what percentage of the energy you use is typically transformed into heat?289views
- Multiple ChoiceWhat accounts for the unequal distribution of heat between the equator and the poles?198views
- Multiple ChoiceWhy did the transfer of energy between the two samples stop?148views
- Textbook Question
The temperature within the Earth’s crust increases about 1.0 C° for each 30 m of depth. The thermal conductivity of the crust is 0.80 J/s C°. Compare this heat to the 1000 W/m² that reaches the Earth’s surface in 1.0 h from the Sun.
264views - Multiple ChoiceUneven heating of the Earth's surface by the sun causes which of the following phenomena?174views
- Textbook Question
The temperature within the Earth’s crust increases about 1.0 C° for each 30 m of depth. The thermal conductivity of the crust is 0.80 J/s C°. Determine the heat transferred from the interior to the surface for the entire Earth in 1.0 h.
362views - Multiple Choice
A cubic Styrofoam cooler containing ice on a hot day is shown in the following figure. The thickness of each wall of the cooler is 15 mm, with a side length of 1 m. If it is 40°C outside, how long will 2 kg of ice last in the cooler? Assume that during the melting process, the temperature inside the cooler remains at 0°C and that no heat enters from the bottom of the cooler. Note that the latent heat of fusion for water is 334 kJ/kg and the thermal conductivity of Styrofoam is 0.033 W/mK.
844views6rank2comments - Multiple Choice
If the intensity of sunlight measured at the Earth's surface is 1400 W/m2 , what is the surface temperature of the Sun? Treat the Sun like a true blackbody. Note that the distance from the Earth to the Sun is 1.5 x 1011 m and the radius of the Sun is 696 million meters.
900views4rank2comments - Multiple Choiceof work are done on a gas in a process which decreases the thermal energy by . How much heat energy is transferred to or from the system?523views