C1 Over view
- Created by: Louisa Hamlett
- Created on: 09-12-17 14:07
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- C1 Overview
- States of matter
- Solids
- Strong forces
- Tightly packed particals
- Fixed shape
- Lattice arrangment
- Liquids
- Forces weaker then solids
- Free to move
- Stick closely together
- No definite shape
- Gases
- Well separated
- Free to move
- No definite shape
- Random motion in straight lines
- Solids
- Changing state
- Melting-Boiling-Condensing-Freezing
- Heat=vibration=weakening forces
- Endo and Exothermic reactions
- Endothermic
- Higher energy than reactants
- Difference in height represents energy taken in
- Exothermic
- Lower energy than reactants
- Difference in height represents the energy given out
- Endothermic
- Bond energies
- Bond energy calculations
- Overall energy charge=energy required to break bonds-energy released by forming bonds
- Endo or exo?
- Endotheric is when a bond is broken
- Exothermic is when a bond is formed
- Bond energy calculations
- Combustion and air pollution
- Incomplete combustion
- Produces carbon monoxide
- A toxic gas
- Produces carbon monoxide
- Releases sulfur dioxide and oxides of nitrogen
- A very harmful gas
- Incomplete combustion
- Greenhouse gases and climate change
- Carbon dioxide
- Emit heat from the earth back to it
- Heating it up
- melting the polar ice caps
- Raising sea levels
- And causing extreme weather
- Reducing pollution and tests for gases
- Tests
- Oxygen
- Re-lights a glowing splint
- Carbon dioxide
- Clouds lime water
- Hydrogen
- Lit splint makes a squeaky pop
- Chlorine
- leaches blue litmus paper
- Oxygen
- Ways to reduce pollution
- Use renewable energy sources
- Use fuel efficient cars
- Tax produces
- Producers become carbon neutrral
- Tests
- Fuel cells
- Clean energy releases
- e.g. Hydrogen+Oxygen?Water
- Extremely efficient
- Hydrogen needs to be made
- It is hard to store and dangerously explosive
- Clean energy releases
- Potable water
- Water resorces
- Ground water
- Waste water
- Salt water
- Water fit to drink
- Treatments
- Distilled water
- Chlorination
- Filter it
- Treatments
- Water resorces
- The evolution of the atmosphere
- Phase 1
- Volcanoes give out gases
- Phase 2
- Ocean plants and algae absorb carbon dioxide
- Phase 3
- Oxygen production by algae and green plants
- Phase 1
- States of matter
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