Question

A substance is dissolved in water, and the temperature of the surroundings decreases. Is this process exothermic or endothermic? Explain your reasoning in 3-5 sentences.

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Answer 1

Answer:

endothermic reaction

Explanation:

This is because it absorb heat from the surrounding which is required to break the bond hold it together hence as it absorb heat from the surrounding the temp of surrounding decrease.

Answer 2

The given process was endothermic

Explanation:

• The process in which heat energy is given out into the surroundings is termed an exothermic process.
• In an exothermic process, the temperature of the surroundings increases.

For example: the combustion of fuel

• The process in which heat energy is absorbed from the surroundings is termed an endothermic process.
• In an endothermic process. the temperature of the surroundings decreases.

For example: Melting of ice cubes into the water.

So, when a substance is dissolved in water the temperature of the surroundings decreases which indicates that the heat energy is absorbed from its surroundings, hence an endothermic process.

Learn more about the exothermic and endothermic processes here:

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