An ideal gas consists of a large number of identical molecules. The volume occupied by the molecules themselves is negligible compared to the volume occupied by the gas. The molecules obey Newton’s laws of motion, and they move in random motion.
Q. When a sample of gas is cooled in a sealed?
When a sample of gas is cooled in a sealed, rigid, container the pressure the gas exerts on the walls of the container will decrease because the gas particles hit the walls of the container. Energy is added to change liquid water to water vapor, a gas. Since energy is absorbed, this phase change is endothermic.
Table of Contents
- Q. When a sample of gas is cooled in a sealed?
- Q. Which 2 gas samples contain the same number of molecules?
- Q. Which statements describe an ideal gas?
- Q. What is meant by an ideal gas under what conditions does a real gas behave most like an ideal gas?
- Q. Which phrase describes the motion and attractive forces of ideal gas particles?
- Q. What is the mass of an original 5.60 gram?
- Q. Which term describes the motion of gas particles?
- Q. Which phrase describes a gas Brainly?
- Q. How are gases and liquids different?
- Q. Why is it nearly impossible to compress a liquid?
- Q. Can liquids compress?
Q. Which 2 gas samples contain the same number of molecules?
As an example, equal volumes of molecular hydrogen and nitrogen contain the same number of molecules and observe ideal gas behavior when they are at the same temperature and pressure.
Q. Which statements describe an ideal gas?
Explanation: Ideal gases have perfectly elastic collisions with no energy lost. The particle size is insignificant compared to the volume, and the average energy of the particles depends on the temperature.
Q. What is meant by an ideal gas under what conditions does a real gas behave most like an ideal gas?
Generally, a gas behaves more like an ideal gas at higher temperature and lower pressure, as the potential energy due to intermolecular forces becomes less significant compared with the particles’ kinetic energy, and the size of the molecules becomes less significant compared to the empty space between them.
Q. Which phrase describes the motion and attractive forces of ideal gas particles?
Answer Expert Verified Answer is: random straight-line motion and no attractive forces. An ideal gas is: 1) made up of molecules which are in constant random motion in straight lines.
Q. What is the mass of an original 5.60 gram?
Highlight to reveal answers and explanations
| Questions | Answer | Explanations |
|---|---|---|
| 46 What is the mass of an original 5.60-gram sample of iron-53 that remains unchanged after 25.53 minutes? (1) 0.35g (3) 1.40 g (2) 0.70 g (4) 2.80 g | 2 | table N..half life is 8.51 min 25.53 min/8.51 min= 3 half lives 5.60g–>2.80g–>1.40g–>0.70g |
Q. Which term describes the motion of gas particles?
Answer. Constant motion in random direction.
Q. Which phrase describes a gas Brainly?
Answer: Gas is a state of matter where particles flow freely. It has no definite shape or volume.
Q. How are gases and liquids different?
Gases, liquids and solids are all made up of atoms, molecules, and/or ions, but the behaviors of these particles differ in the three phases. gas are well separated with no regular arrangement. liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern.
Q. Why is it nearly impossible to compress a liquid?
In a liquid the particles are still close together but a little further apart than in a solid. The particles can move around and mix with other particles. Therefore, liquids can change shape to match their container. There is still very little space between particles, so liquids are also difficult to compress.
Q. Can liquids compress?
Like a gas, a liquid is able to flow and take the shape of a container. Most liquids resist compression, although others can be compressed. Unlike a gas, a liquid does not disperse to fill every space of a container, and maintains a fairly constant density.
