heat is defined to be
Download
Skip this Video
Download Presentation
Heat is defined to be

Loading in 2 Seconds...

play fullscreen
1 / 23

Heat is defined to be - PowerPoint PPT Presentation


  • 92 Views
  • Uploaded on

Heat is defined to be. The amount of microscopic translational and rotational kinetic energy in an object Energy that is transferred to an object because of a temperature difference The temperature of an object in terms of degrees Kelvin. Energy transferred (Q).

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Heat is defined to be' - lani


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
heat is defined to be
Heat is defined to be
  • The amount of microscopic translational and rotational kinetic energy in an object
  • Energy that is transferred to an object because of a temperature difference
  • The temperature of an object in terms of degrees Kelvin.
slide3
200 g of water at 100o is poured into 200 g of water at 0o. The resulting temperature will settle down to be
  • 0o
  • 50o
  • 100o
  • Greater than 50o but less than 100o
  • Less than 50o but more than 0o
slide5

cwater=4186 J/kg oCcgold=129 J/kg oCI use a heating element to put heat into a kg of water and a kg of gold at the same rate. Which changes temperature faster?

  • 1 kg water
  • 1 kg gold
  • They both heat up at the same rate.

Q is energy transferred

put 100g al at 100 o c into 500g water at 20 o c what is the final t what will the final t be
Put 100g Al at 100o C into 500g water at 20o C. What is the final T?What will the final T be?
  • 100o
  • 97o
  • 20o
  • 23o
  • 60o

cAl= 900 J/kg oC

cH2O = 4186 J/kg oC

slide10
You put 0.4 kg of lead into a bucket containing 1.2 kg of pure acetone. Why in the world did you do that?
idolatry even non believers find something to believe in
Idolatry (Even non-believers find something to believe in)

"As I study ancient scripture, I am more and more convinced that there is significance in the fact that the commandment \'Thou shalt have no other gods before me\' is the first of the Ten Commandments." - President Spencer W. Kimball (Aug 1977 Ensign)

it also takes energy to melt a solid or turn a liquid into gas
It also takes energy to melt a solid or turn a liquid into gas

Latent heat of fusion vs. vaporization

slide13
You place equal weights of ice (at 0o C) and boiling water (at 100o C) into a well-insulated container. What is the final temperature.
  • 0o C
  • Between 0oand 50o C
  • 50o C
  • Between 50o Cand 100o C

Lf 3.33x105 J/kg

Lv 2.26x106 J/kg

c ice 2090 J/kg·oC

water 4186 J/kg·oC

steam 2010 J/kg·oC

slide17

You place a mass mi at temperature Ti into a mass mw of water at temperature Tw. What will be the final temperature, and how much ice will there be?

slide20

You place equal weights of ice (at -20o C) and water (at 0o C) into a well-insulated container. How much boiling water must be added to produce only water at 0o C.

slide21

Lf 3.33x105 J/kg

Lv 2.26x106 J/kg

c ice 2090 J/kg·oC

water 4186 J/kg·oC

steam 2010 J/kg·oC

ad