# A2/EXPT/THER/KEN/AMY

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Published on October 10, 2009

Author: ramphy

Source: slideshare.net

## Description

Our experiment to determine Specific latent heat of fusion of ice

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Experiment of specific latent heat of fusion Amy and Ken

Diagram V A ice

Steps Set up circu i t as shown and record the reading on voltmeter and ammeter Weigh the beaker Weigh the beaker and ice Assume the temperature of ice is 0 O C Heat the ice until melting partially and record time used Reweigh ice left

Set up circu i t as shown and record the reading on voltmeter and ammeter

Weigh the beaker

Weigh the beaker and ice

Assume the temperature of ice is 0 O C

Heat the ice until melting partially and record time used

Reweigh ice left

Data Final mass/kg Initial mass/kg 0 Initial temperature/ C Time taken/s C urrent/A V oltage/V

Calculation Q=VIt Q=L(m final -m inital ) L=VIt/(m final -m inital )

Q=VIt

Q=L(m final -m inital )

L=VIt/(m final -m inital )

Safety measures There is no major safety concern because we are using ice which does not hurt us T he electric current is small(3 volt) Dropping the glass beaker is a rare case

There is no major safety concern because we are using ice which does not hurt us

T he electric current is small(3 volt)

Dropping the glass beaker is a rare case

Random errors The heat may be absorbed by the surrounding Some ice may melt during weighing

The heat may be absorbed by the surrounding

Some ice may melt during weighing

Suggest improvements Use a calorimeter Dry the ice before weighing

Use a calorimeter

Dry the ice before weighing