Chemistry worksheet on Gibbs free energy and spontaneity, with handwritten answers on a tablet screen.
A close-up of a handwritten chemistry worksheet on a tablet screen, showing a table and questions about Gibbs free energy (ΔG), enthalpy (ΔH), and entropy (ΔS). The worksheet includes completed answers, such as "Negative" and "Positive" for ΔH and ΔS conditions for spontaneity, and "Indeterminate" for a specific case. Questions 1-6 are visible, with answers filled in, including "always," "never," and "sometimes" for spontaneity. The image is taken at 11:51 PM with a 1% battery level.