zuai-logo
zuai-logo
  2. AP Chemistry
FlashcardFlashcard
Study GuideStudy GuideQuestion BankQuestion BankGlossaryGlossary

What is the effect of increasing bond order on bond strength?

Increasing bond order (single to double to triple) increases bond strength.

Flip to see [answer/question]
Flip to see [answer/question]
Revise later
SpaceTo flip
If confident

All Flashcards

What is the effect of increasing bond order on bond strength?

Increasing bond order (single to double to triple) increases bond strength.

What is the effect of a negative ΔH\Delta HΔH value?

The reaction is exothermic, meaning it releases heat.

What is the effect of a positive ΔH\Delta HΔH value?

The reaction is endothermic, meaning it requires heat.

Compare the energy changes in breaking vs. forming bonds.

Breaking bonds: requires energy (endothermic). Forming bonds: releases energy (exothermic).

How do bond length and bond strength relate to BDE?

Shorter bonds: stronger, higher BDE. Longer bonds: weaker, lower BDE.

Differentiate between single, double, and triple bonds in terms of BDE.

Single bonds: lowest BDE. Double bonds: intermediate BDE. Triple bonds: highest BDE.

What are the steps to calculate ΔH\Delta HΔH using BDEs?

  1. Break all bonds in reactants. 2. Form all bonds in products. 3. Sum BDEs of bonds broken. 4. Sum BDEs of bonds formed. 5. Apply the formula: ΔH=ΣH(broken)−ΣH(formed)\Delta H = \Sigma H(broken) - \Sigma H(formed)ΔH=ΣH(broken)−ΣH(formed).