1. A gas occupies a volume of 31.0 L at 18.0"C. If the gas temperature rises to 36.0°C at constant pressure, (a) would you expect the volume to double to 62.0L? Explain. Calculate the new volume (b) at 36.O°C, (c) at 400. K, and (d) at 0°C. 2. A 256 ml sample of a gas exerts a pressure of 2.75 atm at 16.0°C. What volume would it OCcupy at 1.00 atm and 100."C? 3. Calculate the molecular weight (mass) of a gaseous element if 0.480 g of the gas OCcupies 367 mL at 365 torr and 45°C. Suggest the identity of the element.

Radon is a toxic gas that exists in minute quantities in most homes. If a sample of radon gas occupies a volume of 36.0L at 17.0°C, at what temperature, in °C, will it occupy a volume of  15.0L if the pressure remains constant?  (Hint: Convert ° C to K)   Your Answer:

For many purposes we can treat methane (CH,) as an ideal gas at temperatures above Its bolling point of-161. °C. Suppose the temperature of a sample of methane gas is ralsed from -21.0 °C to 13.0 °C, and at the same time the pressure is changed. If the Initlal pressure was 2.8 atm and the volume Increased by 30.0%, what is the final pressure? Round your answer to the correct number of significant digits. atm x10

For many purposes we can treat propane (C3H8) as an ideal gas at temperatures above its boiling point of -42. °C. Suppose the temperature of a sample of propane gas is lowered from 13.0 °C to -17.0 °C, and at the same time the pressure is changed. If the initial pressure was 3.3 atm and the volume increased by 30.0%, what is the final pressure? Round your answer to 2 significant digits. a atm ☐ x10 X