The relationship between temperature and volume of a fixed mass of a gas at constant pressure is known as __________.May 2, 2019 AdminIn Academics Mcqs, Chemistry McqsLeave a Comment on The relationship between temperature and volume of a fixed mass of a gas at constant pressure is known as __________. A. Boyle’s law B. Charles’s law C. Avogadro’s law D. None of these Posts Tagged with… Charles's law, Chemistry