97041
Descrição
Mapa Mental por victoriarose, atualizado more than 1 year ago
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Criado por victoriarose
quase 11 anos atrás
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Energy and Fuels
- Fuels provide ENERGY - but there are consequences
- Burning fuels
- Release co2
- Global Warming
- Climate Change
- Release co2
- Crude Oil is running out
- Fuels like diesel and petrol will become more expensive
- Big economic effect
- Everything transported by lorry, train or plane gets more expensive
- Fuels like diesel and petrol will become more expensive
- Burning fuels
- Fuel energy is calculated using calorimetry
- Different fuels produce different amounts of energy
- Measure energy release =burn the fuel and use the flame to heat up water
- Method
- 1) Put 50g of water in the copper can and record its temperature
- 2) Weigh the spirit burner and lid
- 3) Put the spirit burner underneath the can, and light the wick. Heat water, stiring constantly, until the temp reaches about 50'C
- 4) Put out the flame using the burner lid, and measure the final temperature of the water
- Re-weight the spirit burner and lid
- So we're measuring:
- Mass of spirit burner & lid. Before & After
- Temp of water. Before & After
- ENERGY TRANS=MASS OF WATER X SPECIFIC HEAT CAPACITY OF WATER X TEMP CHANGE
- Mass of spirit burner & lid. Before & After
- So we're measuring:
- Re-weight the spirit burner and lid
- 4) Put out the flame using the burner lid, and measure the final temperature of the water
- 3) Put the spirit burner underneath the can, and light the wick. Heat water, stiring constantly, until the temp reaches about 50'C
- 2) Weigh the spirit burner and lid
- 1) Put 50g of water in the copper can and record its temperature
- Method
- Calorimetry uses a GLASS or METAL CONTAINER (usually copper)
- Different fuels produce different amounts of energy
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