Table of Contents
- 1 Could it be possible for an object with lower temperature to have more thermal energy than an object with a higher temperature?
- 2 What does it mean when a certain material has a high or low specific heat?
- 3 Why do hot objects have high temperatures?
- 4 What has high specific heat?
- 5 What are the three factors that affect how much total quantity of heat something has?
Could it be possible for an object with lower temperature to have more thermal energy than an object with a higher temperature?
Thermal energy always moves from an object with a higher temperature to an object with a lower temperature. When thermal energy is transferred in this way, the warm object becomes cooler and the cool object becomes warmer….Specific Heat.
| Substances | Specific Heat (joules) |
|---|---|
| iron | 0.45 |
| sand | 0.67 |
| wood | 1.76 |
| water | 4.18 |
What does it mean when a certain material has a high or low specific heat?
Specific heat is Jg−oK . So, a high value means that it takes MORE energy to raise (or lower) its temperature. A low value means that it does not take very much energy to heat or cool it.
Do substances that heat up quickly have a high or low specific heat?
Substances the heat up quickly normally have low specific heat’s since it takes a lower amount of energy to increase the temperature.
What factors affect the amount of heat absorbed by a substance?
The amount of heat absorbed or released by a substance depends directly on the type of substance, its mass, and the temperature change it undergoes.
Why do hot objects have high temperatures?
Hotter objects have a higher average kinetic energy and a higher temperature; cooler objects have a lower average kinetic energy and a lower temperature. The atoms, molecules, and ions in objects have a range of speeds and kinetic energies: some are moving faster and others are moving slower.
What has high specific heat?
Water has the highest specific heat capacity of any liquid. Specific heat is defined as the amount of heat one gram of a substance must absorb or lose to change its temperature by one degree Celsius.
For which purpose would you use a material with a high specific heat?
What can material with a high specific heat can absorb? A material with a high specific heat can absorb a great deal of thermal energy without a change in temperature.
What is the difference between a substance having high specific heat and a substance having low specific heat capacity?
A substance with a high specific heat capacity can absorb a large quantity of heat before it will raise in temperature (water has a high specific heat). A substance with a low specific heat requires relatively little heat to raise its temperature (copper has a low specific heat).
What are the three factors that affect how much total quantity of heat something has?
The substance, the process and the amount of substance are the three variables that affect the amount of energy required to cause a specific change in state.