Work and Heat Review

In expansion, work is being done ________ and ______

• By the system,

  w > 0

• On the system,

  w > 0

• By the system,

  w < 0

• On the system,

  w < 0

In consumption, work is being done _________ and ______

• By the system,

  w > 0

• On the system,

  w > 0

• By the system,

  w < 0

• On the system,

  w < 0

In an exothermic reaction, the surrounding ___________

• Gets warmer

• Gets colder

In an endothermic reaction, the surrounding __________

• Gets warmer

• Gets colder

Breaking bonds _______ energy, so the reaction is _________

• requires, endothermic

• requires, exothermic

• releases, endothermic

• releases, exothermic

Forming bonds ________ energy, so the reaction is ________

• requires, endothermic

• requires, exothermic

• releases, endothermic

• releases, exothermic

In a reaction with _________, work is not done on the reaction.

• constant volume

• constant pressure

In the following reaction, work is being done ___________

2A (g) + 3B (s) ----> 3C (g) + 3D (s)

• By the system

• On the system

In an exothermic reaction, _________ will be at the top of the energy diagram

• reactants

• products

If no reaction is taking place, there is no _________

• q of the surrounding

• q of the system