1. The problem statement, all variables and given/known data I'm taking an online physics course and I do not understand what the symbols mean in the question. The question is: Which of the following is a shorthand way of stating that "the temperature change of a substance is directly propertional to the quantity of heat added"? A. Q ¡Ø m B. m ¡Ø Tf - Ti C. Q ¡Ø T D. Q = Tf - Ti I know that Q means heat. I'm guessing that Tf is final temp and Ti is initial temp. I also know that m is for mass. However I have no idea what ¡Ø means. 2. Relevant equations My text book does not use this ¡Ø symbol and I have searched online but I can't figure out what it is. Can anyone tell me what ¡Ø means? 3. The attempt at a solution I think the answer is C and if I can't get any help here I'm going to choose that answer.