Whether the reactions are endothermic or exothermic is to be determined. Concept Introduction: The chemical reaction in which energy is evolved is called exothermic reaction. The chemical reaction in which energy is absorbed is called endothermic reaction. The standard enthalpy for a reaction is the amount of enthalpy that is to occur at standard conditions. The enthalpy of reaction can be calculated as: Δ H ° r x n = ∑ BE ( reactants ) − ∑ BE ( products ) . Here, BE (reactant)is the average value of bond enthalpy for reactants and BE (products) is the average value of bond enthalpy for products. The bond enthalpy of triple bond is always more than the bond enthalpy of double bond.

Question

Want to see the full answer?

Answer 1

Question

Chapter 8.13, Problem 1PPC

Interpretation Introduction

Interpretation:

Whether the reactions are endothermic or exothermic is to be determined.

Concept Introduction:

The chemical reaction in which energy is evolved is called exothermic reaction.

The chemical reaction in which energy is absorbed is called endothermic reaction.

The standard enthalpy for a reaction is the amount of enthalpy that is to occur at standard conditions.

The enthalpy of reaction can be calculated as:

ΔH°rxn=∑BE(reactants)−∑BE(products).

Here, BE (reactant)is the average value of bond enthalpy for reactants and BE (products) is the average value of bond enthalpy for products.

The bond enthalpy of triple bond is always more than the bond enthalpy of double bond.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

A student proposes the transformation below in one step of an organic synthesis. There may be one or more reactants missing from the left-hand side, but there are no products missing from the right-hand side. There may also be catalysts, small inorganic reagents, and other important reaction conditions missing from the arrow. • Is the student's transformation possible? If not, check the box under the drawing area. . If the student's transformation is possible, then complete the reaction by adding any missing reactants to the left-hand side, and adding required catalysts, inorganic reagents, or other important reaction conditions above and below the arrow. • You do not need to balance the reaction, but be sure every important organic reactant or product is shown. + T X O O лет-ле HO OH HO OH This transformation can't be done in one step.

Determine the structures of the missing organic molecules in the following reaction: X+H₂O H* H+ Y OH OH Note: Molecules that share the same letter have the exact same structure. In the drawing area below, draw the skeletal ("line") structures of the missing organic molecules X and Y. You may draw the structures in any arrangement that you like, so long as they aren't touching. Click and drag to start drawing a structure. X S

Predict the major products of this organic reaction. If there aren't any products, because nothing will happen, check the box under the drawing area instead. No reaction. HO. O :☐ + G Na O.H Click and drag to start drawing a structure. XS xs H₂O