An increase in the pressure of a gas results in a decrease in its? by Sunday | Aug 21 | Chemistry WAEC | 0 comments A. mass B. vapour density C. volume D. temperature E. concentration Correct Answer: Option C – volume Users Also Read These:The volume of an ideal gas at a pressure of 77cmHg…A hydrogen chloride gas reacted with oxygen gas to…A gas has a volume of 546cm³ at O°C. What is the…200 cm³ of a gas at 25°C exerts a pressure of 700…The volume of a fixed mass of gas is 10cm³ when its…