Asksia AI LOGO


Posted 3 months ago
Define enthalpy change in a chemical reaction.
Sign in to unlock the answer
Answer from Sia
Posted 3 months ago
Define enthalpy change: Enthalpy change in a chemical reaction refers to the heat absorbed or released under constant pressure. It is denoted by ΔH\Delta H
Mathematical expression: The enthalpy change for a reaction can be expressed as ΔH=HproductsHreactants\Delta H = H_{\text{products}} - H_{\text{reactants}}, where HproductsH_{\text{products}} is the enthalpy of the products and HreactantsH_{\text{reactants}} is the enthalpy of the reactants
The enthalpy change in a chemical reaction is the heat absorbed or released at constant pressure, calculated as the difference in enthalpy between the products and the reactants.
Key Concept
Enthalpy Change (ΔH\Delta H)
Enthalpy change is the difference in heat content between reactants and products at constant pressure. It is a central concept in thermochemistry and is used to determine whether a reaction is endothermic or exothermic.

Not the question you are looking for? Ask here!

Enter question by text

Enter question by image

Upgrade to Asksia Pro

Join a AskSia's Pro Plan, and get 24/7 AI tutoring for your reviews, assignments, quizzes and exam preps.

Unlimited chat query usages
Strong algorithms that better know you
Early access to new release features
Study Other Question