The combined equation of volume, pressure, temperature and number of moles of a gas is called __________.May 2, 2019 AdminIn Academics Mcqs, Chemistry McqsLeave a Comment on The combined equation of volume, pressure, temperature and number of moles of a gas is called __________. A. Ideal Gas Equation B. General Gas Equation C. Both A and B D. None of these Posts Tagged with… Chemistry, Ideal Gas Equation