LATENT HEAT OF WATER PRACTICAL

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pratha

Cards (4)

set up a heater attached to a voltmeter and ammeter
place it in a funnel above a beaker
measure the beaker's mass and record
put some crushed ice into the beaker and find the mass of it
put it in the funnel with the heater
switch the stopwatch on and heater at the same time, wait 3 minutes
record the mass of the beaker plus water
Energy from the heater:
E = I x V x t
energy = current x PD x time
J = A x V x s
joules = amps x volts x seconds
if energy transfer was 100% efficient, all the energy from the heater would be transferred to the ice
we assume:
energy from heater = mass x Latent heat of fusion
E = mL

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LATENT HEAT OF WATER PRACTICAL

Cards (4)

5.2 Work Done and Energy Transfer

9.4 Heat and Energy Transfer

5.2.1 Calculating Work Done

2.4.2 Energy Transfer

3.2.2 Internal Energy

2.4.2 Energy Transfer

3.2.2 Internal Energy

1.2.2 Efficiency of Energy Transfers

1.1.2 Understanding Energy Transfers

1.2.1 Energy Transfers and Efficiency

1.1.2 Understanding Energy Transfers

3.1 Energy Stores and Transfers

P7.1 Work Done

2.4 Energy Transfers in Electrical Appliances

1.2.3 Reducing Unwanted Energy Transfers

8.1. Thermal Energy Transfer

3.2.3 Specific Latent Heat

5. Energy Transfers in and Between Organisms

P7.1 Work Done

5.2.2 Power

2.4 Energy Transfers in Electrical Appliances