A perfect gas———-? A) constant viscosity B) zero viscosity C) incompressible D) None of the above Related MCQs: Joule-Thomson co-efficient for a perfect gas is The gas, commonly known as “laughing gas” is: The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called the ——–temperature The temperature of a gas in a closed container is 27° C. If the temperature of the gas is increased to 300° C, then the pressure exerted is