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Chemistry - States of Matter

  • Description
  • Outcome
  • Certification
  • Matter exists in four states - solid, liquid, gas and plasma and it will change state depending on the temperature and pressure applied to the matter. In this free online chemistry course about states of matter you will learn about the characteristics of each of the four states and the amount of energy that can be added to or taken from a substance before it starts to change state. As all substances change state at different temperatures and pressures you will learn how to use phase change diagrams to plot the energy and pressure levels, the triple point, critical temperature, boiling and melting points associated with different substances. You will also learn in a step by step manner how to calculate the change in energy needed to move a substance along the state of matter spectrum. This free online chemistry course will be of great interest to all students who wish to pursue a career in any of the sciences such as chemistry, physics, biology or geology, or the individual learner who simply wants to learn and understand what is happening when matter changes from solid to liquid to gas.

  • Learning outcomes:
    - Learn about the four states of matter;
    - Understand the relationship between state and energy;
    - See how to read phase and phase change diagrams;
    - Learn how to calculate the change in energy needed to change state;
    - See how to apply the above to water;

  • All Alison courses are free to study. To successfully complete a course you must score 80% or higher in each course assessments. Upon successful completion of a course, you can choose to make your achievement formal by purchasing an official Alison Diploma, Certificate or PDF.

    Having an official Alison document is a great way to share your success. Plus it’s:

    • Ideal for including in CVs, job applications and portfolios
    • An indication of your ability to learn and achieve high results
    • An incentive to continue to empower yourself through learning
    • A tangible way of supporting the Alison mission to empower people everywhere through education.

Chemistry - States of Matter
  • Free

  • 1-2 Hours

  • Khan Academy

  • Assessment

  • Certification

  • 50 Pts

Modules List( 2 )
  • Module
    Understanding States of Matter in Chemistry
    • In this module learn more about states of matter.
    • States of Matter
    • States of Matter Follow-Up
    • Specific Heat, Heat of Fusion and Vaporization
    • Chilling Water Problem
    • Phase Diagrams
  • Module
    Understanding States of Matter Assessment
    • You must score 80% or more to pass this assessment.
    • Understanding States of Matter assessment
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