Q3 ACT SCI DATA REPRES PRACTICE

Based on the results of experiment 3, if the pressure of a gas is doubled and the volume and amount of the gas in the cylindr is held constant, what will be the impact on temperature?

• It will stay the same

• It will be doubled

• It will be halved

• It will be quadrupled

Answer explanation

Which of the following could be the graph of "Pressure x Volume versus Pressure"?

• 
• 
• 
• 

Answer explanation

Based on the results of experiment 2, what would be the volume of the gas in the cylindr if the cylinder is heated to 350K?

• 1300 ml

• 1400 ml

• 1500 ml

• 1600 ml

Answer explanation

Which of the following experiments will best help the scientist to study the relationship between the volume of a gas (in ml) and the amount of the gas (in moles)?

• Experiment A: Fill a balloon with one mole of hydrogen gas and another balloon with one mole of helium gas, with both at a constant temperature, and measure the volumes of the two balloons.

• Experiment B: Fill a cylinder of a fixed volume with hydrogen gas and another cylinder of a fixed volume with helium gas, with both at standard conditions of temperature and pressure, and measure the weights of the gases in the two cylinders.

• Experiment C: Fill a balloon with one mole of hydrogen gas and another balloon with two moles of hydrogen gas, with both at a constant temperature and pressure, and measure the volumes of the two balloons.

• Experiment D: Fill a 1 liter cylinder with hydrogen gas and a 2 liter cylinder with propane gas, with both at room temperature, and measure the mass of gas in each cylinder.

Answer explanation

Based on the results of experiment 2, if a scientist blows air into a balloon until the diameter of the balloon reaches 20 cm and then proceeds to hold the balloon over the flame of a Bunsen burner, what is expected to happen to the balloon as it is heated?

• The temperature of the balloon will stay the same.

• The volume of the balloon will decrease.

• The volume of the balloon will increase.

• The temperature of the balloon will decrease.

Answer explanation

Looking at the results of experiments 1, 2, and 3, what would you expect to happen to the volume of gas in a cylinder if both the pressure and temperature of the gas are doubled and all of the other factors are held constant?

• The volume will be doubled.

• The volume will stay the same.

• The volume will be halved.

• The effect on the volume cannot be determined.

Answer explanation