Which of the following statements is correct about the combined gas law?

• It gives the relationship of volume and pressure of a gaseous substance

• It gives the relationship of temperature and pressure of a gaseous substance

• It gives the relationship of volume and temperature of a gaseous substance

• It gives the relationship of volume, pressure and temperature of a gaseous substance.

Which is NOT true among the following statements?

• The pressure and volume of a gas are inversely proportional to each other

• The pressure and volume of a gas are directly proportional to the temperature

• The pressure and volume of a gas are directly proportional to each other.

• The pressure and volume of a gas are inversely proportional to each other, but both are directly proportional to the temperature of that gas

What will happen to the pressure and volume of a gas if the temperature of a gas is increased?

• remain the same

• increase.

• decrease

• none of the above

A gas under 25 atm pressure occupies 35.0 L at 127^oC. What is the volume of the gas under standard conditions (1 atm, 0^oC)?

• 100 L

• 597.2 L

• 1880.9 L

• 3000 L

Carbon dioxide occupies a 2.54 L container at STP (0^oC, 101.3 kPa). What will be the volume when the pressure is 150 KPa and 26 C?

• 1.88 L

• 42,300 L

• 0.163 L

• 14.1 L