Specific And Latent Heat

H 8 Latent affectionateness and Specific Heat subject
Student # n8563284 Benson Kingi
Date 24/04/12, Session time 3-5.00pm

REPORT

Aim

in that respect are two parts to this experiment. vocalization A requires standard the latent heat of fusion of ice (Lf). In Part B, solid materials (copper, aluminium) are identified by measuring specialised heats use recorded data and comparing the results against a circuit card of specific heats. (Figure 5).

Introduction Part A

Adding ice to wet, it is correctly fake that the ice will melt. This is caused by a much great heat from the water being thrown into the ice, therefore chilling the water as the ice melts. It should also be noteworthy that during this process the temperature of the ice does not change, Black (1803).
By put down the temperature of the water at frequent intervals (Figure 1.3) during the melting process we elicit determine the latent heat and fusion of ice.

This experiment was performed using a calorimeter (copper cup), a stirrer, thermometer, water and of course ice. To best batten there was minimal effect by any border heat the calorimeter was placed in an insulated surrounding (a block of Styrofoam with a hole in it) and had a wooden lid with a hole in it to allow for the stirrer and thermometer.





The amount of life force infallible to melt ice is

Q = miLf (equation 1)
wheremi is the mass of the ice,
andLf is the latent heat of ice.

The amount of heat required to raise the temperature of a liquid by ?T is

Q = mc?T (equation2)

where m is the mass of the liquid,
c is the specific heat heat capacity of the substance, and
?T is the change in temperature.

The heat Qi required to melt mi kg of ice and raise the temperature of the water formed to T  C is

Qi = mi Lf + mi cw ?Ti (equation 3)

where cw is the specific heat of water (4.18 × 103 J kg-1 K-1).

At this point the ice changes from a solid state to liquid, involving a phase change and
temperature rise.

So, if mw kg of water and...If you want to suit a full essay, order it on our website: Ordercustompaper.com



If you want to get a full essay, wisit our page: write my paper