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Chemical Thermodynamics — Chemistry STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceChemistryChemical Thermodynamics2 Marks
Question
Define : (i) Exothermic process (ii) Endothermic process.
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Answer

i) Exothermic process : A process taking place with the evolution of heat is called exothermic process.
For this process, $Q$ is -ve, $\Delta H$ is -ve.
(ii) Endothermic process : A process taking place with the absorption of heat (from the surroundings) is called endothermic process.
For this process, $Q$ is $+ ve , \Delta H$ is $+ ve$.

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