Spontaneous and non spontaneous reactions

Reactions which do not produce the written products under the given conditions.

• spontaneous
• nonspontaneous

Tags

NGSS.HS-PS1-6

Spontaneous reactions may be extremely slow.

• True
• False

Tags

NGSS.HS-PS1-5

Nonspontaneous reactions may be extremely fast under the specified conditions.

• True
• False

Tags

NGSS.HS-PS1-5

Two factors that determine the spontaneity of a reaction are:

• entropy and free energy
• enthalpy and free energy
• entropy and enthalpy
• endothermic and exothermic

Reactions tend to be spontaneous if they are exothermic.

• True
• False

Tags

NGSS.HS-PS1-4

Reactions tend to be spontaneous if the reactants have more energy than the products.

• True
• False

Tags

NGSS.HS-PS1-4

Gases have more entropy than liquids.

• True
• False

Solids have more entropy than liquids.

• True
• False

An increase in  numbers of moles from reactants to products (e.g. 3A  --> 4 B) would cause a decrease in entropy.

• True
• False

The release of energy from a reaction indicates an increase in entropy of the universe.

• True
• False