Fourth Grading Preliminary Test

Based on the study conducted by Robert Boyle, by plotting the data of a gas held at a constant temperature with changes in volume and pressure. Which of the following graphically presented the relationship if the volume was placed on the X-axis and pressure on the Y-axis?

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In the formation of acid rain, Sulfur dioxide ( SO₂)  a gas that is most likely to be found in exhausts of automobiles and power plants plays a central role. Assuming that gaseous SO₂ is  25.6 L at 0.600 atm.

Applying Robert Boyle’s law, what would be the resulting volume of Sulfur dioxide if pressure changed to 1.30 atm?

• 11.81 L

• 11.82 L

• 118.1 L

• 118 L

Filling up gas in an LPG tank requires a volume and pressure relationship. Why does the pressure inside a container of gas decrease if more gas is added to the container?

• As the gas pressure increases, the volume of gas decreases.

• An increase in gas causes an increase in temperature and pressure.

• There is an increase in the number of particles striking the wall of the container at the same time.

• As the volume of gas increases, the force of collisions between the particles and the container increases.

To show the variable relationship under Robert Boyle. Which two variables are compared in his law?

• pressure and volume

• pressure and temperature

• volume and temperature

• volume and number of moles

For a given sample of gas, what must remain constant if Boyle’s Law is applied?

• Pressure

• Temperature

• Volume

• volume and pressure

Carbon dioxide appears as a colorless odorless gas at atmospheric temperatures and pressures. It is relatively nontoxic and noncombustible. If a  sample of carbon dioxide occupies a volume of 3.0 L at 124 atm pressure. What pressure must the gas exert at 2.0 L?

• 0.186 L

• 1.86 L

• 18. 6 L

• 186 L

Volume is inversely proportional to the pressure at constant temperature was best expressed by which mathematical formula below?

• V₁ / T₁   = V₂ / T₂

• V₁ / P₁ = V₂ / P₂

• V₁ P₁   = V₂ P₂

• P₁ / T₁     =    P₂ / T₂

A scuba diver needs a diving tank to provide breathing gas while he is underwater. How much pressure is needed for 6.00 Liter of gas at 1.01 atmospheric pressure to be compressed in a 3.00 Liter cylinder?

• 0.202 atm

• 2.02 atm

• 20.2 atm

• 202 atm

The inflated balloon that slipped from the hand of Juan has a volume of 0.50 L at sea level (1.0 atm) and it reached a height of approximately 8 km where the atmospheric pressure is approximately 0.33 atm. Assuming the temperature is constant, what is the final volume of the balloon?

• 0.152 L

• 1.52 L

• 15.2 L

• 152 L

Oxygen gas inside a 1.5 L 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?

• 190 atm

• 19.0 atm

• 1.9 atm

• 0.19 atm