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Ch.10 - Gases
Brown - Chemistry: The Central Science 15th Edition
Brown15th EditionChemistry: The Central ScienceISBN: 9780137542970당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Brown 15th EditionCh.10 - Gases문제 2b
10장, 문제 2b

You have a sample of gas in a container with a movable piston, such as the one in the drawing. b. Redraw the container to show what it might look like if the external pressure on the piston is increased from 1.0 atm to 2.0 atm while the temperature is kept constant.

검증된 단계별 안내
1
Identify the initial conditions of the gas: The gas is at an initial pressure of 1.0 atm with a certain volume.
Recognize that the problem involves a change in external pressure from 1.0 atm to 2.0 atm while keeping the temperature constant.
Apply Boyle's Law, which states that for a given amount of gas at constant temperature, the pressure and volume are inversely proportional: \( P_1V_1 = P_2V_2 \).
Understand that increasing the external pressure to 2.0 atm will cause the volume of the gas to decrease, as the piston will move inward to balance the pressure.
Redraw the container with the piston moved inward, indicating a smaller volume of gas, while labeling the new external pressure as 2.0 atm.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
1m

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Gas Laws

Gas laws describe the behavior of gases in relation to pressure, volume, and temperature. The most relevant here is Boyle's Law, which states that at constant temperature, the pressure of a gas is inversely proportional to its volume. This means that if the pressure increases, the volume must decrease, provided the temperature remains unchanged.
추천 영상:
가이드 코스
01:43
Combined Gas Law

Pressure

Pressure is defined as the force exerted per unit area. In the context of gases, it is often measured in atmospheres (atm). When external pressure on a gas increases, it compresses the gas, reducing its volume, which is a key aspect to consider when redrawing the container with the piston.
추천 영상:
가이드 코스
01:15
Pressure Units

Piston Mechanism

A piston mechanism allows for the movement of gas within a container by changing the volume of the gas space. When external pressure is applied to the piston, it moves inward, compressing the gas. Understanding how the piston responds to changes in pressure is crucial for visualizing the gas behavior under different conditions.
추천 영상:
가이드 코스
03:06
Reaction Mechanism Overview
관련 실천
교과서 질문

The apparatus shown here has two gas-filled containers and one empty container, all attached to a hollow horizontal tube closed at both ends.

a. How many blue gas molecules are in the left container?

b. How many red gas molecules are in the middle container?

c. When the valves are opened and the gases are allowed to mix at constant temperature, how many atoms of each type of gas end up in the originally empty container? Assume that the containers are of equal volume and ignore the volume of the connecting tube. [Section 10.4]

교과서 질문

Imagine that the reaction 2 CO1g2 + O21g2¡2 CO21g2 occurs in a container that has a piston that moves to maintain a constant pressure when the reaction occurs at constant temperature. Which of the following statements describes how the volume of the container changes due to the reaction: (a) the volume increases by 50%, (b) the volume increases by 33%, (c) the volume remains constant, (d) the volume decreases by 33%, (e) the volume decreases by 50%.

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교과서 질문

Consider the sample of gas depicted here. What would the drawing look like if the volume and temperature remained constant while you removed enough of the gas to decrease the pressure by a factor of 2? (a) It would contain the same number of molecules. (b) It would contain half as many molecules. (c) It would contain twice as many molecules. (d) There is insufficient data to say.

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