1. Two liters of gas is confined in a container under the pressure of 760 mmHg. what would be the volume if the pressure is increased?
a. 2L b. 3L c. 1L d. 4L
2. Oxygen gas inside a 1.5L gas tank has a pressure of 0.95 atm. Provided that the temperature remains constant, how much pressure is needed to reduce its volume by 1/2?
a. 1.9 atm b. 2.3 atm
c. 2.1 atm d. 1.8 atm
3. A cylinder with a movable piston contains 250cm3 air at 10°C. If the pressure is kept constant, at what temperature would you expect the volume to be 150cm3?
a.150 K b.140 K
c.170 K d.160 K
4. A tank (not rigid) contains 2.3L of helium gas at 25°C. What will be the volume of the tank after heating it and its content to 40°C temperature at constant pressure?
a. 2.3L b. 2.1L
c. 2.3L d. 2.4L
