Calculate the ΔG° of the following reaction

Calculate the ΔG° of the following reaction and state whether it is spontaneous at standard temperature or not. You will need Table B-12 in your CRG.

• -92.71 kJ, yes

• -92.71 kJ, no

• 102.52 kJ, yes

• 92.71 kJ, no

Choose the best answer. What is the name that describes the overall sequence of steps that makes up a chemical reaction?

• reaction instant

• reverse reaction

• reaction mechanism

• reaction spontaneity

Choose the best answer. The (a)   energy is the minimum energy required to start a chemical reaction.

Tags

CCSS.RI.8.3

CCSS.RI.8.5

CCSS.RI.9-10.3

CCSS.RI.9-10.5

CCSS.RI.11-12.5

The branch of chemistry that studies the heat transfers that accompany chemical or physical changes is __________.

• thermochemistry

• analytical

• inorganic

• organic

The measurement of enthalpy changes caused by chemical reactions, changes of state, or the formation of a solution is called __________.

• thermodynamics

• thermochemistry

• analytics

• calorimetry

Also called the law of _______ of energy, the first law of thermodynamics states that the total amount of energy in a thermodynamic system remains constant.

• conservation

• enthalpy

• entropy

• generation

Which of the following are NOT factors affecting reaction rate? Select all that apply.

• the force of the reaction

• the color of the reaction

• concentration of the reactants

• the location of the experiment

• the container used

Reaction (a)   refers to the tendency of a reaction to occur without the application of outside force or energy to sustain the reaction.

Solve the problem: Find the ΔH° for the reaction: Na2CO3(s) + 2HNO3(aq) → 2NaNO3(s) + CO2(g) + H2O(l). You will need Table B-12 in your CRG.

• ΔH°=+125.7 kJ

• ΔH°=−67.2 kJ

• ΔH°=+105.8 kJ

• ΔH°=−45.3 kJ

The study of the relationship between heat and work within chemical reactions or physical changes of state is called chemical (a)   .