Spontaneous Reactions

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

• spontaneous

• non-spontaneous

Spontaneous reactions may be extremely slow.

• True

• False

Tags

NGSS.HS-PS1-5

Solids have more entropy than liquids

• True

• False

What is a spontaneous process ?

• process that does not need external intervention to occur

• fast process

• process that needs an external intervention to occur

Given the change of phase:

CO₂(g) —> CO₂(s)

As CO₂(g) changes to CO₂(s), the entropy of the system

• remains the same

• decreases

• increases

Which one is correct example of spontaneous process?

• arranging a deck of cards

• dropping an egg on the floor

• A ball rolling downhill

• spraying an air freshener

Tags

NGSS.HS-PS3-4

Lighting a match is a nonspontaneous reaction

• True

• False

Tags

NGSS.HS-PS1-4

Photosynthesis is a spontaneous reaction (photosynthesis is endothermic and orderly)

• True

• False

Rusting a iron is spontaneous reaction (rusting an iron is exothermic and orderly)

• True

• False

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

A combustion reaction is a spontaneous reaction

• True

• False