Standard Thermo Quiz Review

What phase of matter is the substance in section C-D?

• Solid

• Liquid

• Gas

• Plasma

In what TWO sections are a phase change happening?

• A-B

• B-C

• C-D

• D-E

• E-F

Which of the following provides the best description of the potential energy diagram?

• 
  Endothermic, -ΔH

• Exothermic, +ΔH

• Endothermic, +ΔH

• Exothermic, -ΔH

Endothermic reactions have a ___.

• +ΔH

• -ΔH

Exothermic reactions have a ____.

• +ΔH

• -ΔH

Is this an endothermic or exothermic reaction?

• Exothermic

• Endothermic

Based on the reaction below, which is the best description about the movement of heat in the reaction?

• 
  Heat is transferred into the system from the surroundings

• 
  Heat is released from the system to the surroundings

• 
  Heat is transferred to the reactants

• Heat is transferred to the products

Which of the following provides the best description of the equation?

• Endothermic, -ΔH

• 
  Exothermic, +ΔH

• Endothermic, +ΔH

• Exothermic, -ΔH

In which sections is kinetic energy increasing?

• A-B

• B-C

• C-D

• D-E

• E-F