GCAP Operator 1 Practice Exam 2025 - Free GCAP Practice Questions and Study Guide

To determine the condensation temperature of ammonia at a pressure of 151 PSIG, one needs to refer to the ammonia pressure-temperature chart, which provides a comprehensive reference for understanding the relationship between pressure and temperature for ammonia in its various phases.

At a pressure of 151 PSIG, ammonia's boiling and condensation point is approximately 85ºF. This temperature indicates that at this specific pressure, ammonia transitions from its gas phase to its liquid phase. Understanding this phase transition is critical in applications utilizing ammonia such as refrigeration systems, where maintaining appropriate pressure and temperature relationships is essential for operational efficiency.

This vital piece of information is not only practical for those working in fields related to refrigeration and HVAC systems but also highlights the thermodynamic principles governing fluid phase transitions. Recognizing phase changes helps in effectively managing ammonia in various operational contexts, ensuring safety and efficiency.