Measuring the specific latent heat of fusion of Ice

In this video, we shall talk about an experiment to measure the specific latent heat of fusion of ice. We shall introduce the experimental setup and mention the precautions in order to get a more accurate result.

[@cappilau7448]

1. To increase the contact area between the ice and the immersion heater, so that the ice is heated more evenly.
2. To avoid the heater from being overheated, and to increase the contact area between the heater and the ice, preventing further heat loss while heating the ice.
3. Place a metal net/a wire gauze at the beak of the funnel.

[@lisama2748]

1)to increase the thermal contact to ensure the heat supply fully transfer to the crushed ice
2)increase thermal contact, reduce heat loss
3)place a very small hole net at the bottleneck of the funnel

[@lennymitchell9126]

keep up the work, much more to come, great future for you

[@anselpan5408]

a.To increase the surface area for contact the heater.
b.To ensure that the heat provided by heater won't lost to the surrounding.
c.Put a net with very tiny holes on the bottom of funnel.

[@7rivon]

for c, would a filter paper work?

[@midres6586]

@@7rivon yea

[@cckruby2001]

(a) Crushed ice is used because It can increase the surface contact between the ice and heater. So the experience result can be more accurately.
(b) The heater must be fully immersed into the ice because it can prevent heat loss to the surrounding.
(c) Put a net into the beaker neck to ensure that no ice will be fallen into the beaker directly.

[@Jlukjluk657]

a)Because it can make more thermal contact with the ice and the heater.So the less energy is used to fill up the gaps between the ice
B)To increase the surface area contact with ice
C)Put a net in the bottom of the funnel

[@Unknown-nw2nx]

1. To increase the thermal contact between the ice and the immersion heater.
2. To prevent heat loss to the surrounding.
3. Put filter paper on the bottom of the funnel.

[@lisama2748]

+eric or the filter paper would absorb the melted water

[@thomaschung125]

1. Ice should be crushed to increase the contact area with the heater.
2. The heater must be fully immersed into the ice as it can prevent heat loss.
3. A small piece of wire gauze or steel wool in the neck of the funnels can prevent the crushed ice from dropping into the beakers directly

[@happibirthday2u]

(a)To increase the contact area.
(b)To reduce heat loss to the surroundings.
(c)To put a paper above the funnel.

[@lisama2748]

+suki hsk above? also the paper would absorb the melted water.

[@happibirthday2u]

+Lisa Ma Oh, I see.

[@haydenchiang9195]

da water de ice

[@glace2319]

Why 2 identical funnels is used?

[@glace2319]

Just a question from textbook with this experiment

[@Emaanmuhaa]

It's used as a control so it doesn't affect the energy that's used to melt the ice~hope this helps

[@glace2319]

@@Emaanmuhaa Thanks

[@moviesland9289]

tysm

[@ashleytchakounte3186]

By Well lagging the calorimeter

[@yellowhelmet6381]

so should girl take physics?