Flashcards
Rate of Heat Transfer
Cards in this deck (7)
- 1Heat energy is...... radiated from the surface of an object
- 2The bigger the surface area...... the more infrared waves can be absorbed or emitted from the surface (a quicker transfer of heat)
- 3Objects made from good conductors...... transfer heat more quickly than insulating materials
- 4Why would a flask be double walled with a vacuum?It stops all conduction and convection through the sides
- 5Why would the walls on the inside of the vacuum be sliver?to keep heat loss by radiation to a minimum
- 6Why would the flask be supported by insulating foam?To minimize the heat conduction to or from the outer glass bottle
- 7Why would the stopper be made out of plastic?To reduce any heat conduction through it