If heat is given out by a process, the process is described as

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Study for the IGCSE Edexcel Chemistry Test. Access flashcards and multiple choice questions with hints and explanations. Get ready for your exam!

Multiple Choice

If heat is given out by a process, the process is described as

Explanation:
Heat being given out means energy is released from the system to its surroundings. That is exothermic. In an exothermic process the enthalpy of the system decreases (negative ΔH) as heat leaves. If heat were absorbed instead, the process would be endothermic with a positive ΔH. Isothermal describes a process that happens at a constant temperature, which is about the temperature change rather than the direction of heat flow, and adiabatic means no heat is exchanged with the surroundings. So, heat being released aligns with the term exothermic.

Heat being given out means energy is released from the system to its surroundings. That is exothermic. In an exothermic process the enthalpy of the system decreases (negative ΔH) as heat leaves. If heat were absorbed instead, the process would be endothermic with a positive ΔH. Isothermal describes a process that happens at a constant temperature, which is about the temperature change rather than the direction of heat flow, and adiabatic means no heat is exchanged with the surroundings. So, heat being released aligns with the term exothermic.

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