Example of Heat Transfer Conduction, Convection, or Radlation Hot chocolate is stirred with a spoon and the spoon gets hot. The Sun warms your skin on a cold day. Macaroni rises and falls in a pot of heated water. You burn your hand by touching a hot stove. You warm your feet in front of a fire. A hot air balloon rises.

Example of Heat Transfer Conduction, Convection, or Radlation Hot chocolate is stirred with a spoon and the spoon gets hot. The Sun warms your skin on a cold day. Macaroni rises and falls in a pot of heated water. You burn your hand by touching a hot stove. You warm your feet in front of a fire. A hot air balloon rises.

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter11: Energy In Thermal Processes

Section: Chapter Questions

Problem 22P: When a driver brakes an automobile, the friction between the brake drams and the brake shoes...

See similar textbooks

Similar questions

How does the latent heat of fusion of water help slow the decrease of air temperatures, perhaps preventing temperatures from falling significantly below 0C, in the vicinity of large bodies of water?
When a driver brakes an automobile, the friction between the brake drams and the brake shoes converts the cars kinetic energy to thermal energy. If a 1 500-kg automobile traveling at 30 m/s comes to a halt, how much does the temperature rise in each of the four 8.0-kg iron brake drums? (The specific heat of iron is 448J/kg C.)
Compare the SI units of specific heat and latent heat and explain any differences.
Your house will be empty for a while in cold weather and want to save energy and money. Should you tum the thermostat down to the lowest level that will protect the house from damage such as freezing pipes, or leave it at the normal temperature? (If you don't like coming back to a cold house, imagine that a timer controls the heating system so the house will be warm when you get back.) Explain your answer.
Calorimetry On a hot day, the temperature of an 80,000-L swimming pool increases by 1.50 . What is the net heat transfer during this heating? Ignore any complications, such as loss of water by evaporation.
A 0.250kg aluminum bowl holding 0.800 kg of soup at 25.0C is placed in a freezer. What is the final temperature if 377 kJ of energy is transferred from the bowl and soup, assuming the soup's thermal properties are the same as that of water? Explicitly show how you follow the steps in ProblemSolving Strategies for the Effects of Heat Transfer.
What would happen if the glass of a thermometer expanded more on warming than did the liquid in the tube? (a) The thermometer would break, (b) It could be used only for temperatures below room temperature. (c) You would have to hold it with the bulb on top. (d) The scale on the thermometer is reversed so that higher temperature values would be found closer to the bulb, (e) The numbers would not be evenly spaced.
A large room in a house holds 975 kg of dry air at 30.0C. A woman opens a window briefly and a cool breeze brings in an additional 50.0 kg of dry air at 18.0C. At what temperature will the two air masses come into thermal equilibrium, assuming they form a closed system? (The specific heat of dry air is 1 006 J/kg C, although that value will cancel out of the calorimetry equation.)
A large room in a house holds 975 kg of dry air at 30.0C. A woman opens a window briefly and a cool breeze brings in an additional 50.0 kg of dry air at 18.0C. At what temperature will the two air masses come into thermal equilibrium, assuming they form a closed system? (The specific heat of dry air is 1 006 J/kg C, although that value will cancel out of the calorimetry equation.)
When heal transfers into a system, is the energy stored as heat? Explain briefly.
Describe a situation in which heat transfer occurs.
The latent heat of vaporization for water at room temperature is 2 430 J/g. Consider one particular molecule at the surface of a glass of liquid water, moving upward with sufficiently high speed that it will be the next molecule to join the vapor. (a) Find its translational kinetic energy. (b) Find its speed. Now consider a thin gas made only of molecules like that one. (c) What is its temperature? (d) Why are you not burned by water evaporating from a vessel at room temperature?