'Hreactants' presentation slideshows

Energetics

481 views • 25 slides

Ch. 15: Energy and Chemical Change

Ch. 15: Energy and Chemical Change. 15.2 Heat. Objectives. Describe how a calorimeter is used to measure energy absorbed or released. Explain the meaning of enthalpy and enthalpy change in chemical reactions and processes. Measuring Heat.

376 views • 20 slides

Enthalpy: is the heat absorbed or released by a system at constant pressure .

527 views • 17 slides

Chapter 9 Chemical Quantities in Reactions

Cold packs use an endothermic reaction. Chapter 9 Chemical Quantities in Reactions. 9.5 Energy in Chemical Reactions. Heat of Reaction. The heat of reaction , is the amount of heat absorbed or released during a reaction at constant pressure

279 views • 16 slides

For exothermic rxns, the heat content of the reactants is larger than that of the products.

247 views • 8 slides

Heat & Enthalpy Changes

Heat & Enthalpy Changes. Objectives: 1. Define the terms enthalpy and enthalpy changes. 2. Explain what information is given by the standard enthalpy change of a reaction. 3. Explain how a calorimeter is used to determine the quantity of heat transferred in a chemical reaction. Key Terms:

314 views • 7 slides