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The polystyrene cup is a better insulator than metal, metal is a good conductor of heat and so would transfer the heat from the reaction to the air outside it, where polystyrene keeps the heat inside. This enables you to get a much more accurate reading, as less heat has escaped.

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Wiki User

11y ago
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Wiki User

16y ago

Because it insulates. To measure the heat of neutralization, the heat absorbed or released by the reaction are measured by a change in temperature. If heat is released into the room through the container, the measurement won't be accurate. The better insulated, the better.

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stephahie azumah

Lvl 2
2y ago

It is used to minimize heat loss to the surroundings because it is a good thermal insulator

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Curtis Strite

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2y ago
great answer
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Randy Marsh

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2y ago
Meeep Meep Meeep

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Wiki User

11y ago

Because it does not react with acids and alkalies and prevents heat loss

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Wiki User

11y ago

The reaction is exothermic so using a polystyrene cup will act as an insulator and preventing heat loss!

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Kyle Rotton

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3y ago

Because it insulates- heat will get to a glass beaker to make it hot than the polystyrene cup will not get that hot when you're holding it

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Inga Zarina

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2y ago

a

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Ryan Tucker

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2y ago

Why not

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10y ago

7amra

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Q: Why is an experiment performed in a polystyrene cup and not in a glass beaker?
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