Endothermic/Exothermic & Calorimetry

Multiple Choice

In an exothermic reaction, heat is ...

• taken in

• given out

Multiple Choice

Is the following reaction endothermic or exothermic? $$O_2\left(g\right)\ +\ 2\ H_2\ \left(g\right)\ \rightarrow\ 2\ H_2O\ \left(g\right)\ +\ Energy$$  

• endothermic

• exothermic

Multiple Choice

Calorimetry is the measurement of the ___________

(Choose the best answer below.)

• transfer of heat into or out of a system (reaction/process)

• change in temperature

• amount of energy required to raise the temperature of 1 gram of the substance by 1°C.

• change in the mass of a substance throughout a reaction.

Multiple Choice

Shown are the units for....

• specific heat capacity

• mass

• temperature

• energy

Multiple Choice

Q = mCpΔT , Q is....

• energy

• change in temperature

• specific heat

• mass

Multiple Choice

Q = mCpΔT, $$\Delta T$$   is....

• energy

• Change in temperature

• specific heat

• mass

Multiple Choice

Q = mCpΔT, $$C_p$$    is....

• energy

• Change in temperature

• specific heat

• mass

Multiple Choice

Q = mCpΔT, m   is....

• energy

• Change in temperature

• specific heat

• mass

Multiple Choice

When a  piece of aluminum foil is taken out of the oven and cools from 125° C to 53°C, What is the change in temperature?

• 72°C

• 178°C

• 125°C

• 53°C

Multiple Choice

If the specific heat of water is 4,186 J/kg∙°C, how much heat is required to increase the temperature of 1.2 kg of water from 23 °C to 39 °C? 

• -80,371.2

• 44,938.6

• 80,371.2

• 112,575.9