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A compressed gas has an absolute Reid Vapor Pressure less than ______ kPa at ______ °C.

A) 275 kPa, 37.8 °C
B) 300 kPa, 36.9 °C
C) 175 kPa, 37.8 °C
D) 400 kPa, 40.0 °C

User Lurker
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Final answer:

The question aims to find the Reid Vapor Pressure of a compressed gas at a specified temperature, among provided choices. Understanding vapor pressure's relationship with temperature and the typical range for gases allows for an informed selection based on reasonable values given the conditions.

Step-by-step explanation:

The question at hand involves understanding the concept of Reid Vapor Pressure (RVP), which is a measure of a liquid's tendency to evaporate when it is subjected to some defined conditions.

The student is asked to determine the RVP under certain temperature conditions. In the context provided, the conditions of the mentioned Reid Vapor Pressure are not directly listed, but we can infer that the correct answer must show an RVP characteristic of a compressed gas that matches typical RVP values found in chemistry references or must resonate with the trends noticed in the behavior of gases under varying temperatures.

From the options given, the correct answer should show a reasonable RVP value when compared against normal vapor pressures of liquids and also should consider that the vapor pressure increases with temperature. The options A) 275 kPa at 37.8 °C, B) 300 kPa at 36.9 °C, C) 175 kPa at 37.8 °C, and D) 400 kPa at 40.0 °C feature different combinations of pressure and temperature.

The provided excerpts from the study materials don't directly give a Reid Vapor Pressure, but they explain the relationship between pressure and temperature, as well as provide examples of pressure in kPa at certain conditions. This understanding might help us eliminate any options that are inconsistent with typical gas behavior.

For example, as temperature increases, vapor pressure generally increases. It is important to remember that the question explicitly asks for a vapor pressure characteristic of a compressed gas, within a reasonable range at the given temperatures.

User Sofia Bo
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