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## Physics 2080 Week 1 Chapter 16 Part A notes

by: Amanda Biddlecome

58

0

2

# Physics 2080 Week 1 Chapter 16 Part A notes Physics 2080

Marketplace > Clemson University > Physics 2 > Physics 2080 > Physics 2080 Week 1 Chapter 16 Part A notes
Amanda Biddlecome
Clemson
GPA 4.0

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These notes cover what was discussed in our first day of class. We began discussing temperature, heat, and thermal expansion.
COURSE
General Physics 2
PROF.
Dr. Pope
TYPE
Class Notes
PAGES
2
WORDS
CONCEPTS
Physics
KARMA
25 ?

## Popular in Physics 2

This 2 page Class Notes was uploaded by Amanda Biddlecome on Thursday January 7, 2016. The Class Notes belongs to Physics 2080 at Clemson University taught by Dr. Pope in Fall 2016. Since its upload, it has received 58 views. For similar materials see General Physics 2 in Physics 2 at Clemson University.

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Date Created: 01/07/16
Physics  Chapter  16   Temperature  and  Heat   January  7,  2016   Amanda  Biddlecome     1)  Thermodynamics  is  what  we’re  really  studying  this  semester.     -­‐Einstein  was  “enamored”  with  it  and  said  it  has  to  be  true     2)  Temperature     -­‐heat=energy  transferred  between  objects  because  of  a  temperature     difference     -­‐thermal  contact=when  two  objects  can  pass  heat  to  one  another     -­‐thermal  equilibrium=when  transfer  of  heat  stops     -­‐The  Zeroth  Law  of  Thermodynamics=  if  A  and  B  are  in  thermal  equilibrium     and  B  and  C  are  in  thermal  equilibrium,  then  A  and  C  will  be  in  thermal     equilibrium  when  they  are  brought  into  thermal  contact;  B=a  thermometer       -­‐If  no  heat  flows,  then  no  energy  is  flowing     -­‐Fahrenheit=used  mercy  in  thermometers  and  now  use  alcohol  and  thermal     expansion       *freezing=32  degrees  F;  boiling=212  degrees  F     -­‐Celsius=now  is  used  all  around  the  world  except  in  the  United  States       *freezing=0  degrees  C;  boiling=100  degrees  C       *steam  point  to  ice  point=100  degrees  (Fahrenheit  is  more           complicated)     T(Fahrenheit)=  (9/5)T(Celsius)+32   T(Celsius)=(T[Fahrenheit]-­‐32)(5/9)       -­‐pressure=the  number  of  times  a  molecule  strikes  the  walls  of  its  container;     proportional  to  temperature       *as  temperature  increases,  pressure  increases  and  vice  versa  (for  all         gases)       *every  gas  comes  back  to  the  same  absolute  zero  which  means  that         there’s  no  heat  and  no  movement  of  molecules         *we  can’t  measure  an  exact  value  for  absolute  zero,  but  we  know  it’s         approximately  -­‐273.15  degrees  Celsius     -­‐Kelvin=0K  is  absolute  zero;  273K  is  freezing;  373K  is  boiling       *scientific  standard     3)  Thermal  Expansion=when  molecules  are  heated,  they  move  around  more  and   therefore  take  up  more  space  causing  the  container  to  expand     -­‐Linear  Expansion     Change  in  Length=alpha*initial  length*change  in  temperature                   ΔL=αLΔT alpha=coefficient  of  linear  expansion  and  changes  between  what  material  you  have   Final  Length=change  in  length+initial  length   Change  in  temperature  in  Kelvin=change  in  temperature  in  Celsius       -­‐Volume  Thermal  Expansion=the  same  as  linear  but  happens  in  3D       *instead  of  alpha,  we  have  beta     ΔV=βVΔT   β=3α         *When  a  container  that  has  a  liquid  is  heated,  both  the  container  and         the  liquid  expand.  An  overflow  of  the  liquid  can  occur  depending  on         the  coefficient  of  volume  expansion.  To  find  the  overflow,  subtract  the         change  in  volume  of  the  container  and  the  change  in  volume  of  the         liquid.     4)  Heat=energy  transferred  due  to  temperature  differences     -­‐calorie=the  amount  of  heat  needed  to  raise  the  temperature  of  1  gram  of     water  1  degree  Celsius       *1  calorie=4.184J  (which  is  the  energy  equivalent)       *Calories=what  are  in  food  and  equal  1000  calories  and  4184J

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