Chapter 16 ~ Thermochemistry

Indicate whether the statement is true or false. A thermochemical equation includes the physical states of the reactants and products and specifies the change in enthalpy.

• True

• False

Indicate whether the statement is true or false. The enthalpy of the reaction is the energy required to break the bonds in the reactants minus the energy gained from forming bonds in the products.

• True

• False

Indicate whether the statement is true or false. The enthalpy of natural elements is always 1 kJ/mol.

• True

• False

Indicate whether the statement is true or false. The following reaction is exothermic: NH4NO3(s) + 27 kJ --> NH4+(aq) + NO3-(aq)

• True

• False

Indicate whether the statement is true or false. Spontaneous processes always result in an increase in entropy of the universe.

• True

• False

Indicate whether the statement is true or false. H2O(l) --> H2O(s) would result in an increase in entropy.

• True

• False

Indicate whether the statement is true or false. In thermochemistry, the surrounding is the reaction or process being studied.

• True

• False

Indicate whether the statement is true or false. The process of condensation is exothermic.

• True

• False

Indicate whether the statement is true or false. The process of freezing is endothermic.

• True

• False

Indicate whether the statement is true or false. The following reaction has an increase in entropy: 2HgO(cr) --> 2Hg(l) + O2(g)

• True

• False