What is the boiling point of ammonia at atmospheric pressure?

What is the boiling point of ammonia at atmospheric pressure?

• A. -42 degrees F
• B. -28 degrees F
• C. -18 degrees F
• D. -12 degrees F

Answer: (B)

The boiling point of ammonia at atmospheric pressure is approximately -28 degrees Fahrenheit. This characteristic is crucial for understanding ammonia’s behavior in refrigeration systems. Ammonia has a low boiling point, which allows it to evaporate easily at standard temperatures, thereby absorbing heat from the environment. This makes it an effective refrigerant, particularly in industrial applications. The boiling point is a fundamental property in thermodynamics affecting how refrigerants are selected and utilized in various systems. Lower boiling points enable the refrigerant to achieve efficient cooling cycles, especially in situations where high heat absorption is essential. In this context, knowing the boiling point of substances like ammonia is important for anyone working with air conditioning and refrigeration systems, as it informs the system design and operational parameters.

The boiling point of ammonia at atmospheric pressure is approximately -28 degrees Fahrenheit. This characteristic is crucial for understanding ammonia’s behavior in refrigeration systems. Ammonia has a low boiling point, which allows it to evaporate easily at standard temperatures, thereby absorbing heat from the environment. This makes it an effective refrigerant, particularly in industrial applications.

The boiling point is a fundamental property in thermodynamics affecting how refrigerants are selected and utilized in various systems. Lower boiling points enable the refrigerant to achieve efficient cooling cycles, especially in situations where high heat absorption is essential. In this context, knowing the boiling point of substances like ammonia is important for anyone working with air conditioning and refrigeration systems, as it informs the system design and operational parameters.