13169060
Descrição
Mapa Mental por Sam Westley, atualizado more than 1 year ago
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Criado por Sam Westley
mais de 6 anos atrás
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Specific Heat Capacity
- Dependent on
- Mass of substance
- What substance is
- (or container
of water)
- (or container
of water)
- Amount of energy
supplied
- Mass of substance
- Energy used for known
change of temperature
of known mass
- E = m x c x
- E = enery transfered in Joules (J); m =
mass in kilograms (Kg); c = SHC
(J/(Kg"C)); * = temeprature change in
degrees Celcius ("C)
- E = enery transfered in Joules (J); m =
mass in kilograms (Kg); c = SHC
(J/(Kg"C)); * = temeprature change in
degrees Celcius ("C)
- E = m x c x
- Specific Heat Capacity (SHC)
- c = -------------
- c = -------------
- Energy needed/transfered to raise
the temperature of 1Kg of a
substance 1*C.
- Unit of SHC = Joule per kilogram degree Celcius
- J/(Kg"C)
- J/(Kg"C)
- Unit of SHC = Joule per kilogram degree Celcius
- Water has very high SHC - Sun's energy affects
temperature of sea much less than affects land
- Coastal towns usually cooler in
Summer and warmer in Winter
than towns inland
- Coastal towns usually cooler in
Summer and warmer in Winter
than towns inland
- Storage heaters. Use
electricity at night to heat
special bricks or concrete
blocks - energy transfer from
bricks warms room
- Bricks have high SHC - store lots of energy -
warm up slowly when heater element on -
cool down slowly when off
- Electricity at night
(off-peak) - heaters
designed to be cost
effective
- Electricity at night
(off-peak) - heaters
designed to be cost
effective
- Bricks have high SHC - store lots of energy -
warm up slowly when heater element on -
cool down slowly when off
- SHC
- water = 4200
- oil = 2100
- aluminium = 900
- iron = 390
- copper = 490
- lead = 130
- concrete = 950
- water = 4200
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