Capacité Thermique Massive Flashcards
What is the first factor that influences the amount of heat a substance can absorb?
The specific heat capacity of the substance.
True or False: The specific heat capacity is the same for all substances.
False.
What does a higher specific heat capacity indicate about a substance’s ability to absorb heat?
It indicates that the substance can absorb more heat before its temperature rises.
Fill in the blank: The amount of heat absorbed is directly proportional to the __________ of the substance.
mass.
What is the second factor that affects heat absorption in substances?
The mass of the substance.
Multiple Choice: Which of the following factors does NOT influence heat absorption? A) Specific heat capacity B) Mass C) Color D) Temperature
C) Color.
What is the third factor that influences the amount of heat a substance can absorb?
The temperature change of the substance.
True or False: A substance at a higher initial temperature can absorb the same amount of heat as at a lower temperature.
False.
How does temperature change affect heat absorption?
The greater the temperature change, the more heat is absorbed.
What formula is used to calculate the heat absorbed by a substance?
Q = mcΔT.
In the formula Q = mcΔT, what does ‘m’ represent?
The mass of the substance.
In the formula Q = mcΔT, what does ‘c’ represent?
The specific heat capacity of the substance.
In the formula Q = mcΔT, what does ‘ΔT’ represent?
The change in temperature.
Fill in the blank: The greater the mass of a substance, the __________ heat it can absorb.
more.
True or False: Specific heat capacity varies with the state of the substance (solid, liquid, gas).
True.
What effect does the state of a substance have on its heat absorption?
Different states have different specific heat capacities.
What is a common unit for measuring specific heat capacity?
Joules per kilogram per degree Celsius (J/kg°C).
Multiple Choice: Which substance typically has the highest specific heat capacity? A) Water B) Iron C) Mercury D) Oil
A) Water.
What role does heat transfer play in the absorption of heat by a substance?
Heat transfer determines how quickly a substance can absorb heat.
Fill in the blank: When a substance absorbs heat, its temperature __________.
increases.
True or False: All substances absorb heat in the same way.
False.
What is the relationship between heat absorption and phase changes?
During phase changes, substances can absorb heat without a change in temperature.
What is latent heat?
The heat absorbed or released during a phase change.
Fill in the blank: The specific heat capacity of a substance is influenced by its __________.
molecular structure.
Multiple Choice: Which factor can affect the specific heat capacity of a material? A) Pressure B) Volume C) Temperature D) All of the above
D) All of the above.
