Behavior of gases

A syringe is filled with air to 60 mL at 1 atmosphere. Then the syringe is sealed and compressed to 20 mL. What is most likely to happen?

• Syringe warms up

• Volume is increasing

• Pressure is increasing

• Pressure is decreasing

A flask filled with CO2 is heated from 10°C to 40°C. The starting pressure was 98 kPa. What is the most possible behavior of the gas?

• Pressure increases

• Pressure decreases

• Volume increases

• Volume decreases

A balloon is filled with 1,5 L of air at 20°C, then placed in a freezer until it reaches a temperature of 5°C. What is the most possible result of this?

• Volume reduces

• Volume increases

• Pressure reduces

• Pressure increases

5.36 L of N2 are at -25°C and 97.7 kPa. What would happen if temperature increases to 128°C and pressure increases to 151 kPa?

• Molecules collide with the walls of container

• As temperatures increases so does the volume

• As pressure increases so does the volume

• Energy is lost in the process

Which is a fundamental assumption of the kinetic molecular theory?

• All atoms are composed of subatomic particles

• The particles of matter move in predictable paths

• No energy is lost when particles collide with one another

• Particles of matter never come into contact with one another

Tags

NGSS.HS-PS3-2

Which relationship is shown in the graph?

• Boyle's Law

• Charles' law

• kinetic molecular theory

• definition of thermal energy