The mass of 1 litre of helium under a pressure of 2 atm and at a temperature of 27°C is The mass of 1 litre of helium under a pressure of 2 atm and at a temperature of 27°C is September 6, 2021 Category: Cengage NEET by C.P Singh , Chapter 19 - Kinetic Theory of Gases , Part 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related