Study

Unit 3 (2ºeso)

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  • Say the name of the change of state which occurs when an ice cube becomes water.
    Melting (fusion)
  • If we increase temperature, what is it going to happen to the particles, are they going to move faster or slower?
    Particles move faster
  • What is the law associated to this formula?
    Gay-Lussac
  • What state of matter corresponds with the next picture?
    Gas
  • Realiza el siguiente cambio de unidades de presión: 5,2 atm --> mmHg
    3952 mmHg
  • Which quantities are involved in the formula of Boyle?
    Pressure and volume
  • Which quantities are involved in the formula of Gay-Lussac?
    Pressure and temperature
  • Which quantities are involved in the formula of Charles?
    Volume and temperature
  • Name the state of matter in which the shape (form) is variable but the volume remains constant.
    Liquid
  • Name the transformation which occurs when we mop the floor and it dries.
    Evaporation
  • Name of the change of state which goes from solid to gas
    Sublimation
  • What is the law associated to this graph?
    Gay-Lussac
  • Explain if we have temperature constant, what is it going to happen to the pressure if I decrease volume.
    Pressure is going to increase because they are inversely proportional
  • According to the next graph, which is the state or states of the substance at 5ºC?
    Solid
  • Say if the solution to the exercise is correct or not. If is NOT correct, explain why.
    It is not correct because the operations have been made with celsius degrees instead of kelvin degrees.
  • Make the next change: 480 mmHg --> atm
    0,63 atm
  • According to the next graph, which is the state or states of the substance at -15ºC?
    Solid+liquid
  • What is the law associated to this graph?
    Boyle
  • De acuerdo al gráfico, ¿cuál es el punto de ebullición de esta sustancia?
    75ºC
  • If we have a balloon at a constant volume and we want to make it explode, what do we have to make? Increase or decrease temperature?
    Increase temperature
  • Make the next change: 478000 Pa --> atm
    4,72 atm
  • What is the law associated to this formula?
    Charles
  • Realiza el siguiente cambio de unidades de presión: 3,4 atm --> Pa
    344420Pa
  • ¿A qué estado de agregación corresponde la siguiente imagen?
    Solid