Scelta multipla
A mixture of 7.87 g CH4 and 7.13 g Xe is placed in a container, and the total pressure is found to be 0.51 atm. Determine the partial pressure of Xe in atm.
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7. Gases
Partial Pressure
Scelta multipla
If the partial pressure of a gas in a mixture has declined to one third of its initial value, what is the new partial pressure if the initial pressure was 90 kPa?
A
45 kPa
B
60 kPa
C
30 kPa
D
15 kPa
Guida verificata passo dopo passo1
Understand the concept of partial pressure: In a mixture of gases, each gas contributes to the total pressure in proportion to its amount. The partial pressure of a gas is the pressure it would exert if it occupied the entire volume alone.
Identify the initial partial pressure of the gas: According to the problem, the initial partial pressure of the gas is 90 kPa.
Recognize the change in partial pressure: The problem states that the partial pressure has declined to one third of its initial value.
Calculate the new partial pressure: To find the new partial pressure, multiply the initial pressure by one third. This can be expressed mathematically as: × 90 kPa.
Perform the multiplication: Calculate the result of the multiplication to determine the new partial pressure, which will be one third of 90 kPa.
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