This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General physiology, Subject name: Physiology
[{'content': 'Osmotic pressure of 1 mol of ideal solute relative to pure water is \nSelect and explain. \nA. 6.5 atm., B. 22.4 atm., C. 4 atm., D. 2 atm.', 'role': 'user'}, {'content': "Answer: B \nExplanation: According to the Van't Hoff equation, an ideal solution containing 1 mole of dissolved paicles per liter of solvent at 0deg C will have an osmotic pressure of 22.4 atm Ref guyton and hall textbook of medical physiology 12/e pg159", 'role': 'assistant'}]