Kinetics

They permanently produce endothermic conditions promoting product formation

They alter elemental composition, resulting in new compounds being more reactive

They increase the rate at which the reaction occurs while remaining unchanged themselves

They increase thermal energy within the system, causing more frequent collisions

Changing reactant concentration alters the order of each reactant within a given rate law expression.

The rate remains unchanged regardless of changes in reactant concentration.

The rate decreases as reactant concentration rises due to dilution effects on collision frequency.

The rate of reaction increases as reactant concentration rises if reactants appear in the rate law expression.

Using antioxidants that react with free radicals, slowing down food spoilage processes.

Boiling water before cooking pasta which just involves changing temperature and state of matter.

Slicing fruits and vegetables that exposes them to air leading to enzymatic browning reactions without interference with mechanisms.

Refrigeration that slows all reactions non-specifically by reducing kinetic energy only.

They increase the rate by providing an alternative pathway involving higher concentration of reagents.

They lower activation energies necessary for proceeding.

They reduce overall thermodynamics stability of products.

Acetic acid(CH₃COOH), although capable of forming hydrogen bonds, has a vapor pressure higher than ethylene glycol due to less extensive hydrogen bonding network.

Dimethyl ether(CH₃OCH₃) having only weak van der Waals forces corresponds to a relatively high vapor pressure without significant intramolecular hydrogen bonding.

Acetone((CH₃)₂CO) notwithstanding its keto group releasing polarity, has polarity less significant than hydrogen bonds essential for high boiling point.

Ethylene glycol(C₂H₄(OH)₂) due to extensive network formed through multiple hydrogen bond sites.

What difference does it make if we replace our nucleophile with one that's more bulky but similarly charged during nucleophilic substitutions?

Does altering acyl group branching near carbonyl carbon atoms affect whether nucleophilic acyl substitution proceeds via tetrahedral intermediate or addition-elimination pathway?

How crucial is catalyst presence to facilitate rearrangement steps following initial nucleophile attack in acyl substitutions?

How much is reactant concentration impacting overall yield and rate for nucleophilic acyl substitution reactions under constant conditions?

The concentration levels required for solution reactions only.

The relative number of moles of each substance involved in the reaction.

The volume ratios under standard conditions for gases involved in the reaction.

The absolute mass of each substance involved in the reaction.

Alterations in optical rotation measurements indicating chirality differences among products.

Changes in product yield determined through gravimetric analysis after reactions complete.

Variation in isotopic labeling patterns in products when using isotopically labeled reactants.

Differences in overall reaction exothermicity measured by calorimetry.

BrF3, despite its polarity being considerable, has minimal opportunity for hydrogen bonding when compared to the above.

BF3 given its trigonal planar geometry, having limited possibilities for creating intensive intermolecular forces due to lack of dipole moment or hydrogen bond capability.

CH3Cl, while having a dipole moment, has reduced tendency for hydrogen bonding.

NH3 which has the potential for both strong hydrogen bonding and ion-dipole interactions.

Two phase diagram

One molecular orbital diagram

Energy profile diagram

Three kinetic plot