RSI Phase 5 Practice Test 2025 – Comprehensive Exam Preparation

When the temperature of a saturated refrigerant is increased, the pressure will also increase. This relationship stems from the principles of thermodynamics and the properties of saturated refrigerants, which adhere to specific pressure-temperature relationships defined in pressure-temperature charts. As temperature rises, the kinetic energy of the refrigerant molecules increases, leading to more frequent and forceful collisions among them. This increased molecular activity causes the pressure of the refrigerant to rise.

In a saturated state, the refrigerant is at equilibrium between its liquid and vapor phases. Any increase in temperature moves this equilibrium, necessitating a rise in pressure to maintain saturation. Therefore, for a saturated refrigerant, the temperature and pressure are directly related: as one increases, so does the other.

This principle is fundamental in refrigeration cycles and helps in designing and operating refrigeration systems efficiently and effectively. Understanding this relationship is crucial for anyone working with refrigerants and HVAC systems.