Answer to Question #205962 in General Chemistry for Fiona Yvonne Balia

Question

Spontaneous for T>0°C

Spontaneous for T<0°C

What is the above words all about?

What is the spontaneous reaction based from the observation from the given above?

Determine and describe the factors that involve in the reaction:

Temperature

Sizes and shape

Motion

Answer 1

If ΔH is negative and ΔS is positive, the reaction is spontaneous at all temperatures because the change in Gibbs free energy is always negative. Contrastingly, if ΔH is positive and ΔS is negative, the reaction is nonspontaneous at all temperatures as written.

Reactant concentration, the physical state of the reactants, and surface area, temperature, and the presence of a catalyst are the four main factors that affect reaction rate.