3.1.5.3. effect of temperature

• what happens when a substance is heated?

  thermal energy is transferred to it
• what is this thermal energy converted into?

  kinetic energy
• what does the energy transfer mean for the molecules of the substance?

  they will move faster and further
• what will happen as a result of the increased movement of the molecules?

  collisions will occur more often and with greater energy
• what is a result of the greater number of collisions for the molecules?

  more collisions have E≥Ea and result in a reaction
• what does increasing the temperature in a reaction do?

  increase the rate of reaction as more collisions of greater energy occur in a given time
• what happens to the the MB distribution as a result of increased temperature?

  shifts to the right so a greater proportion of molecules have E≥Ea
• MB temperature graph