slide1 n.
Skip this Video
Loading SlideShow in 5 Seconds..
Phase Change PowerPoint Presentation
Download Presentation
Phase Change

Loading in 2 Seconds...

play fullscreen
1 / 18

Phase Change - PowerPoint PPT Presentation

  • Uploaded on

Frozen Fire Andit Macarine Echin Paloma Andaluz Yamilo Bonono Ruperez Cabag Lagura Sulapas Espinosa Lumogdang. Phase Change. Introduction.

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

Phase Change

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
Frozen Fire






Sulapas Espinosa


Phase Change

Another change that may occur when heat is added to or taken out from an object is phase change. For example, you know that water can change from solid (ice) to liquid (water) or from liquid to gas (steam).

  • Crushed Ice
  • Glass container/beaker
  • Timer
  • Stirring rod
  • Thermometer
  • Electric Burner
  • Wire gauze
  • Weighing scale
  • Weigh the ice/ice cubes. Record its mass as m1.

Mass of ice (m1): 423 g

  • Measure the temperature of the ice and assign it as the initial temperature T1.

Temperature (T1): 0 degree Celsius.

  • Stir the contents of the container, then measure the temperature of the contents every 2 minutes after all the ice has completely melted. Record the temperature in Table 1.

Weigh the liquid contents of the beaker and record its mass as m2 and its temperature as T2.

M2 = 295 g

T2 = 7 degrees Celsius

  • Continue taking the temperature of the liquid water until the temperature starts to increase.Record the time it takes for the liquid water to increase its temperature from T2.

Time taken for the temperature to start rising from T2:

1 minute

  • Heat the contents of the beaker. Get the temperature reading every 2 minutes until the water boils and record it in Table 2.

Continue boiling for the next 3-5 minutes and record the temperature as T3.

T3 = 99 degrees Celsius

  • What heppens to the temperature of water while changing from ice to liquid to water?

The temperature increases.

  • Why does ice inside the container melt after some time?

Because of the factors that affects the melting of the ice, like the stirring that produces friction and gives off heat which makes melting possible and much faster.

how much heat was used to change the ice to steam
How much heat was used to change the ice to steam?

Qtotal = mcice (Tm-Ti) + mHf + mcwater (Tv-Tm) + mHv + mcsteam (Tf-Tv)

= 0.423 kg (0.5 kcal/kg degree Celsius) (0 degree Celsius – 1 degree Celsius) + 0.423 kg (80 kcal/kg) + 0.295 kg ( 1 kcal/kg degree Celsius) (100 dgrees Celsius – 0 degree Celsius) + 0.295 kg (0.48 kcal/kg) (99 degrees Celsius – 100 degrees Celsius)

= 63.27 kcal


An ice cube placed in a container and settled in expected to meet and when it was stirred the faster is the melting process. As the ice turns into liquid, the temperature was observed to increase. Healing the melted ice using the burner affects the temperature and evaporation occurs then.