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A substance that gives off heat when dissolving in water will

have greater solubility at low temperatures. According to Le Chatelier's

Principle - if heat is a product of the reaction, increasing the

temperature will drive the reaction backwards.

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14y ago
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11y ago

It does increase. The temperature is increased, so more solute particles will dissolve. This occurs because as the temperature increases, the intermolecular forces can be more easily broken, allowing more of the solute particles to be attracted to the solvent particles.

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10y ago

It is because the soulubility is changed physically. In actuality the solubility of na2so4 increases but as temp increases the solubity aslo decreases. So really it is like the solubility of the chemical decreases more during the thermal increse than the increase of solubility.

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12y ago

I believe (I may be wrong) because it's a gas.

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10y ago

because it releases heat when dissolving. cooler T favors the process

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Q: Why is the solubility of na2so4 decreases while the temp increases?
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