Skip to main content
Ch.10 - Gases
Brown - Chemistry: The Central Science 14th Edition
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoBrown 14th EditionCh.10 - GasesProblema 14b
Capitolo 10, Problema 14b

(b) Which units are appropriate for expressing atmospheric pressures, N, Pa, atm, kg/m2?

Guida verificata passo dopo passo
1
Identify the units commonly used for measuring pressure. Pressure is defined as force per unit area.
Understand the units given in the question: N (Newton), Pa (Pascal), atm (atmosphere), and kg/m^2 (kilograms per square meter).
Recognize that Newton (N) is a unit of force, not pressure. Therefore, it is not appropriate for expressing atmospheric pressures.
Pascal (Pa) is the SI unit of pressure and is defined as one newton per square meter. It is suitable for expressing atmospheric pressures.
Atmosphere (atm) is a unit specifically used to measure atmospheric pressure, thus it is also appropriate.

Risposta video verificata per un problema simile:

Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
1m

Concetti chiave

Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.

Units of Pressure

Pressure is defined as force per unit area. Common units for measuring pressure include pascals (Pa), atmospheres (atm), and newtons per square meter (N/m²). Each unit can be converted into others, but they represent the same physical quantity, allowing for flexibility in scientific communication.
Video consigliato:
Percorso guidato
01:15
Pressure Units

Pascals (Pa)

The pascal (Pa) is the SI unit of pressure, defined as one newton per square meter (N/m²). It is a standard unit used in scientific contexts to express atmospheric pressure, making it essential for understanding various physical phenomena, including weather patterns and gas laws.
Video consigliato:
Percorso guidato
01:15
Pressure Units

Atmospheric Pressure

Atmospheric pressure is the force exerted by the weight of air above a given point, typically measured at sea level. It is commonly expressed in atmospheres (atm), where 1 atm is approximately equal to 101,325 Pa. Understanding atmospheric pressure is crucial for fields such as meteorology, aviation, and environmental science.
Video consigliato:
Percorso guidato
02:09
Total Pressure Example
Pratica correlata
Domanda del libro di testo

A person weighing 75 kg is standing on a threelegged stool. The stool momentarily tilts so that the entire weight is on one foot. If the contact area of each foot is 5.0 cm2, calculate the pressure exerted on the underlying surface in (b) atmospheres

Domanda del libro di testo

A person weighing 75 kg is standing on a threelegged stool. The stool momentarily tilts so that the entire weight is on one foot. If the contact area of each foot is 5.0 cm2, calculate the pressure exerted on the underlying surface in (a) bars

387
views
Domanda del libro di testo

The graph below shows the change in pressure as the temperature increases for a 1-mol sample of a gas confined to a 1-L container. The four plots correspond to an ideal gas and three real gases: CO2, N2, and Cl2. (b) Use the van der Waals constants in Table 10.3 to match the labels in the plot (A, B, and C) with the respective gases 1CO2, N2, and Cl22.

746
views
Domanda del libro di testo

(c) Which is most likely to be a gas at room temperature and ordinary atmospheric pressure, F2, Br2, K2O?

1182
views
Domanda del libro di testo

Which of the following statements is false? (a) Gases are far less dense than liquids. (b) Gases are far more compressible than liquids. (c) Because liquid water and liquid carbon tetrachloride do not mix, neither do their vapors. (d) The volume occupied by a gas is determined by the volume of its container.

1078
views
1
comments