AP: Thermochemistry

What is the symbol for heat?

• q
• H
• J
• ∘C

The heat content of a system at constant pressure is called

• entropy
• enthalpy
• heat
• energy

Tags

NGSS.HS-PS3-4

The capacity to do work or transfer heat

• temperature
• energy
• power
• enthalpy

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

NGSS.HS-PS3-4

The heat required to raise the temperature of a SUBSTANCE by 1∘C

• calorie
• joule
• specific heat
• 4.184 J

The heat required to raise the temperature of WATER 1∘C

• calorie
• joule
• specific heat
• energy

Tags

NGSS.HS-PS3-4

Chemical reactions where both q and H are negative are considered

• spontaneous
• nonspontaneous
• exothermic
• endothermic

Chemical reactions that absorb energy are called

• endothermic
• fast
• slow
• exothermic

Tags

NGSS.HS-PS1-4

Formula for solving specific heat problems

• q = mcΔT
• H = ΔH x moles
• H = ΔH x grams
• products - reactants

Tags

NGSS.HS-PS3-4

Convert 42 kJ into joules

• 0.042 J
• 175.73 J
• 42000 J
• 10.04 J

The following graph shows a(n)

• endothermic reaction
• exothermic reaction
• increase in entropy
• decrease in entropy

Tags

NGSS.HS-PS1-4