Temperature and heat

View mindmap
  • Temperature and heat
    • Temperature scales
      • Celsius vs Kelvin
        • K = C + 273.15
    • Thermometric Properties
      • The physical property of a substance that changes measurably with a change in temperature
        • Length of column of liquid i.e. thermometer
        • Resistance (thermistor)
        • Pressure of a gas at constant volume / Volume of a gas at constant pressure
        • EMF of a thermocouple
        • Colour (crystals)
      • Water is an unsuitable thermometric property
      • Some thermometers disagree (see experiment)
      • Characteristics of a good thermometer
        • Low heat capacity
        • Sensitive (responds quickly)
        • Good range
        • Not cumbersome
    • Heat capacity
      • is the heat necessary to raise the temperature of an object by 1K
      • See experiments
      • Specific heat capacity is the necessary to raise the temperature of 1Kg of a substance by 1K
      • Storage Heaters
      • Water is an ideal coolant
    • Heat transfer
      • Conduction
      • Convection
      • Radiation
    • Latent heat
      • is the amount of heat necessary to change the state of a substance
      • Specific Latent heat of fusion is the amount of heat necessary to change 1Kg of a substance from a solid to a liquid
      • Specific Latent heat of vaporisation is the amount of heat necessary to change 1Kg of a substance from a liquid to a gas
      • Examples: Food preservation, perspiration, heat pump (Fridge)
    • Experiments
      • Calibration curve of a thermometer using a laboratory thermometer as standarrd
      • To measure the s.h.c. of a metal
      • The specific heat capacity of fusion of ice
      • Untitled

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all Thermal physics resources »