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Page 1: Heating(Water(Practical(Experiment( - The Armidale …wordpress.as.edu.au/aapps/files/2014/02/Heating-Water.-PDF.pdf · Tme 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160

Heating  Water  Practical  Experiment    The  aim  of  this  experiment  to  see  the  temperature  in  which  the  solution  changes  state  (Solid-­‐Liquid-­‐Gas-­‐Liquid)  and  imagine  (at  a  particle  level)  what  is  actually  happening.      The  apparatus  was  simply  retort  with  a  bosshead  and  clamp  with  a  data  logger  in  the  clamp.  We  also  had  an  electric  heater  with  a  beaker  with  ice,  water  and  a  stirring  pill  in  it.                                                      Method:  

1. Set  up  apparatus.  2. Fill  beaker  with  50mL  water  and  the  rest  ice.  3. Wait  for  the  temperature  drop  to  0ºC  4. Turn  on  heater  and  stirrer.  5. Wait  until  it  boils.  6. Record  for  2  minutes  to  see  the  plateau  

 

 

Page 2: Heating(Water(Practical(Experiment( - The Armidale …wordpress.as.edu.au/aapps/files/2014/02/Heating-Water.-PDF.pdf · Tme 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160

Results  (Table/Graph)    

                                     

Page 3: Heating(Water(Practical(Experiment( - The Armidale …wordpress.as.edu.au/aapps/files/2014/02/Heating-Water.-PDF.pdf · Tme 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160

   Conclusion:  In  this  experiment  we  noticed  that  right  at  the  start  the  temperature  went  slowly  up,  then  zoomed  to  about  90-­‐95º  and  then  slowed  down  again.  This  is  because  all  the  heat  energy  from  the  heater  was  used  to  transfer  the  ice  to  water  and  the  water  to  gas.  It  plateaued  at  about  95  degrees  because  all  the  energy  was  then  taken  with  the  gas  to  condense  in  the  air.      The  water  boiled  at  about  96.6ºC,  although  it  is  expected  to  get  to  100ºC,  the  altitude  and  air  pressure  effects  the  temperature  in  which  it  boils.      


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