Question: what are the units of delta g reaction
[{'answer': 'J in SI units', 'provenance': [{'wikipedia_id': '238181', 'title': 'Gibbs free energy', 'start_paragraph_id': 1, 'start_character': 422, 'end_paragraph_id': 1, 'end_character': 435, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '238181', 'title': 'Gibbs free energy', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 894, 'bleu_score': 0.9374569374362911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6968549451774388459}, 'section': 'Section::::Abstract.'}]}]