Internal energy and energy transfers

• • Internal energy is total kinetic and potential energy of all particles that make up a system
• • Heating the system transfers energy to particles and an increase in internal energy
  • So, there is a change in temperature or change in state
  • Change in temperature depends on SHC
  • Change in state happens if substance is heated enough - energy needed to break bonds
• • A change in temperature is dependent of SHC
  • SHC is amount of energy required to raise temperature of one kilogram of substance by 1 degrees
  • change in thermal energy = mass x SHC x temperature change