Structure 1.5 Review

For a fixed mass of gas at a constant temperature, what happens to the volume if the pressure of the gas is doubled?

• Volume remains the same

• Volume will double

• Volume will be halved

• Volume will increase exponentially

Which of the following conditions makes gases deviate from ideal behavior?

• High pressure and high temperature

• Low pressure and low temperature

• High pressure and low temperature

• Low pressure and high temperature

Based on the graph below, choose the correct statement that describes the relationship between pressure and temperature for a fixed mass and volume of a gas?

• Pressure is inversely proportional to the absolute temperature

• Pressure is directly proportional to the square of the absolute temperature

• Pressure is inversely proportional to the square of the absolute temperature

• Pressure is directly proportional to the absolute temperature

Based on the table below, what is the correct calculation to determine the final volume of a fixed mass of gas:

Under which conditions would a gas deviate the most from the ideal gas model?

• 1 atm, 298 K

• 200 atm, 298 K

• 2 atm, 25°C

• 100 kPa, 25°C

14.01g of nitrogen gas (N₂) is reacted with excess H₂. What volume of ammonia gas would be produced at STP? Assume the molar volume of a gas at STP is 22.7 dm³

N_2(g) + 3H_2(g) → 2NH_3(g)

• 11.4 dm³

• 22.7 dm³

• 34.1 dm³

• 45.4 dm³

Which of the following gases most closely aligns with the behavior of an ideal gas?

• H₂, Hydrogen

• Br₂, Bromine

• Cl₂, Chlorine

• O₂, Oxygen

Tags

NGSS.HS-PS3-2

Which of the following are assumptions of the ideal gas model?

I. The volume occupied by the gas particles is negligible

II. There are no intermolecular forces between gas particles

III. There is zero particle movement

• I and II only

• I and III only

• II and III only

• I, II, and III

Tags

NGSS.HS-PS3-2

The temperature of an ideal gas is 27°C. What is the temperature of the gas after the pressure is doubled and the volume is tripled?

• 162°C

• 450°C

• 1527°C

• 1800°C

A gas syringe contains 40 cm³ of an ideal gas at 27°C. What will the volume of the gas be after it is warmed to 57°C at constant pressure?

• 1.9 cm³

• 3.6 cm³

• 44 cm³

• 84 cm³