Spontaneous Reaction Video Lessons

Concept

# Problem: Melting of ice is a spontaneous reaction at room temperature and pressure because melting is accompanied by _____. A. a decrease of entropy B. a decrease of energy C. an increase of energy D. an increase of entropy

###### FREE Expert Solution

The standard free energy change of a reaction (ΔG) is given by the following equation:

$\overline{){\mathbf{∆}}{\mathbf{G}}{\mathbf{=}}{\mathbf{∆}}{\mathbf{H}}{\mathbf{-}}{\mathbf{T}}{\mathbf{∆}}{\mathbf{S}}}$

Recall that if:

• ΔG < 0 or ΔG = (–); the reaction is spontaneous

83% (327 ratings)
###### Problem Details

Melting of ice is a spontaneous reaction at room temperature and pressure because melting is accompanied by _____.

A. a decrease of entropy

B. a decrease of energy

C. an increase of energy

D. an increase of entropy