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N5 Specific Heat Capacity

Terms in this set (16)

What is the definition for the specific heat capacity of a substance?
the amount of energy
required to raise the temperature of one kilogram of the substance by
one degree Celsius
What unit is specific heat capacity measured in?
joules per kilogram per degree Celsius or
J kg⁻¹ °C⁻¹ (or J/kg °C)
What is the symbol for specific heat capacity?
c
What is the symbol for change in thermal energy?
∆E
What unit is the change in thermal energy measured in?
joules (J)
What is the symbol for mass?
m
What unit is mass measured in?
kg
What is the symbol for change in temperature?
∆T
What unit is change in temperature measured in?
degrees Celsius, °C
Rearrange to make specific heat capacity the subject of the equation:
E = c m ∆T
c = E ÷ m ∆T
Two objects the same size absorb the same amount of thermal energy. Which one gets hotter - the one with the higher specific heat capacity, or the one with the lower specific heat capacity?
The one with the lower specific heat capacity
Two object the same size are the same temperature. Which one cools down slower, the one with the higher specific heat capacity or the one with the lower specific heat capacity?
The one with the higher specific heat capacity.
Sand has a specific heat capacity of 730 J kg⁻¹ °C⁻¹. Water has a specific heat capacity of 4180 J kg⁻¹ °C⁻¹.
Which one warms up faster in the sun?
Sand
Sand has a specific heat capacity of 730 J kg⁻¹ °C⁻¹. Water has a specific heat capacity of 4180 J kg⁻¹ °C⁻¹.
Which one cools down slower in the sun?
Water
Sand has a specific heat capacity of 730 J kg⁻¹ °C⁻¹. Water has a specific heat capacity of 4180 J kg⁻¹ °C⁻¹.
Which one stays warm longer at night?
Water
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