Endo/Exo

Multiple Choice

• A

• B

• C

• D

Multiple Choice

In rechargeable battery system, the discharging reaction is

• Exothermic & the charging reaction is Exothermic

• Exothermic & the charging reaction is Endothermic

• Endothermic & the charging reaction is Exothermic

• Endothermic & the charging reaction is Endothermic

Multiple Choice

When NH4NO3 is dissolved in water, the temperature of the water decreases. When NaOH is dissolved in a separate water sample, the temperature of the water increases. Based on these observations, it can be concluded that the dissolving of

• Both salts is endothermic

• Both salts is exothermic

• NH4NO3 is endothermic and the dissolving of NaOH is exothermic

• NH4NO3 is exothermic and the dissolving of NaOH is endothermic

Multiple Choice

• 1

• 2

• 3

• 4

Multiple Choice

Which change of phase is endothermic

• CO2(g) > CO2(s)

• H20(l) > H2O(s)

• I2(s) > I2(g)

• H2O(g) > H2O(l)

Multiple Choice

• Potential energy of the products

• Potential energy of the reactants

• Activation energy

• Activated Complex

Multiple Choice

A solid is dissolved in a beaker of water. Which observation suggests that the process is endothermic?

• The solution gives off a gas

• The solution changes color

• The temperature of the solution decreases

• The temperature of the solution increases

Multiple Choice

• A

• B

• C

• D

Multiple Choice

• A

• B

• C

• D

Multiple Choice

• Exothermic, releasing energy

• Exothermic, absorbing energy

• Endothermic, releasing energy

• Endothermic, absorbing energy