Friday, 7 June 2013

Endothermic vs. Exothermic

Today, we did four simple experiments to see that some reactions absorb heat energy (feel cold) while others release heat energy (feel warm/hot).

  1. NaOH + water = increase in temperature (exothermic)
  2. Ammonium chloride + water = decrease in temperature (endothermic)
  3. HCl + NaOH solutions = increase in temperature
  4. Ammonium thiocyanate + barium hydroxide = decrease in temperature

No comments:

Post a Comment