A2/ Expt /Thermal /Kevin/ Carl

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Information about A2/ Expt /Thermal /Kevin/ Carl

Published on October 10, 2009

Author: ramphy

Source: slideshare.net

Specific latent heat of fusion of ice Kevin Carl

Diagram and set of equipments

Steps to be followed Set up the apparatus as shown in the diagram. Measure the mass of the ice. Switch on the heater allow it to heat up so that it is slightly warm to the touch and then put it in the ice . Record the time (T) when the ice is melted completely. Record the voltage (V) and current (I), this may need to be adjusted throughout the experiment so that the power input remains constant. Repeat the experiment with a different mass of ice and obtain at least six sets of values

Set up the apparatus as shown in the diagram.

Measure the mass of the ice.

Switch on the heater allow it to heat up so that it is slightly warm to the touch and then put it in the ice .

Record the time (T) when the ice is melted completely.

Record the voltage (V) and current (I), this may need to be adjusted throughout the experiment so that the power input remains constant.

Repeat the experiment with a different mass of ice and obtain at least six sets of values

Method to collect data(table)

Safety measures Caution!!! The electrical heater is likely to be very hot. Handle with care. Caution!!! The ice is likely to be very cold. Handle with care. Caution!!! T h e voltage of the electrical heater is likely to be high. Handle with care.

Caution!!! The electrical heater is likely to be very hot. Handle with care.

Caution!!! The ice is likely to be very cold. Handle with care.

Caution!!! T h e voltage of the electrical heater is likely to be high. Handle with care.

Method to reduce random error Repeat the experiment for at least 6 times Large mass of ice Keep the room temperature as low as possible Use advanced equipments (voltmeter, ammeter)

Repeat the experiment for at least 6 times

Large mass of ice

Keep the room temperature as low as possible

Use advanced equipments (voltmeter, ammeter)

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