SLH-specific Latent Heat

• On SLH graph, why does it stay constant for a while then carry on climbing?

  Because when it is constant, the energy being is being used to weaken/break the forces holding particles together INSTEAD OF increasing the particles internal energy.
• what is SLH of Fusion

  the changes between solids and liquids
• what is slh of vaporistaion

  changed between gasses and liquids
• why does on the SLH cooling graph does it stay constant on same places?

  because the energy released by the substances changing state are counteracting the cooling temperature.
• what is the equation for SLH

  energy required or released= mass x SLH of substance

  e=MxSLH

  e=ML
• Density equation =

  D=M/V

  M= DV
• Density of regular object = length of three sides timed each other and measure the weight/ Density = m/v
• Density of an irregular object

  • Measure weight / mass of object first
  • Fill displacement can/ eureka can up to spout
  • Using string submerge object in water gently and wait for all water to be displaced out of the beaker
  • Measure the displaced water in a measuring cylinder.
  • Input variables in equation d=m/v
• Specific latent heat equation = E= mL m as mass in Kg and L for specific latent heat, E is energy required. L= E/m
• What is specific latent heat?

  the amount of energy needed to change the state of 1Kg of substance by 1 degree
• Heating and compressing gas increases the pressure.
• pV = constant for gasses. p and V are inversely proportional