When lithium iodide (LiI) is dissolved in water, the solution becomes hotter. a. Is the dissolution of lithium iodide endothermic or exothermic?

검증된 단계별 안내

Understand the terms: Endothermic reactions absorb heat from the surroundings, causing the temperature to decrease. Exothermic reactions release heat into the surroundings, causing the temperature to increase.

Observe the effect: When lithium iodide (LiI) is dissolved in water, the solution becomes hotter, indicating a rise in temperature.

Relate the effect to the type of reaction: Since the temperature of the solution increases, it suggests that heat is being released into the solution.

Conclude the type of reaction: Based on the release of heat and the increase in temperature, the dissolution of lithium iodide in water is an exothermic reaction.

Apply the concept: In exothermic reactions like the dissolution of LiI in water, the system (LiI and water) releases heat, making the surroundings (the solution) hotter.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

영상 길이:

도움이 되었나요?

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Endothermic and Exothermic Reactions

Endothermic reactions absorb heat from their surroundings, resulting in a temperature drop in the environment, while exothermic reactions release heat, causing the surroundings to become warmer. Understanding these definitions is crucial for determining the thermal nature of a dissolution process.

Dissolution Process

The dissolution process involves the interaction between solute and solvent molecules, where solute particles are separated and surrounded by solvent molecules. This process can either absorb or release energy, depending on the strength of the interactions formed compared to those broken.

Thermodynamics of Solutions

Thermodynamics in solutions examines how energy changes during the dissolution process. The enthalpy change associated with dissolution can indicate whether the process is endothermic or exothermic, which is essential for predicting temperature changes in the solution.