What happens to saturated gases when heat is removed?

What happens to saturated gases when heat is removed?

• A. They expand indefinitely
• B. They start to follow ideal gas laws
• C. They condense to a liquid
• D. They vaporize

Answer: (C)

When heat is removed from saturated gases, they condense to a liquid. This process occurs because saturated gases are in a state where both gas and vapor can coexist at a particular temperature and pressure. As heat is removed, the energy of the molecules in the gas decreases, leading to a reduction in their ability to move freely. Consequently, the molecules start to come closer together and transition into a liquid state. This fundamental concept is crucial in HVAC and refrigeration systems, where the phase change from gas to liquid is often exploited to remove heat from a designated area effectively. Understanding this phase transition is vital for the operation of various components like condensers and evaporators in refrigeration cycles.

When heat is removed from saturated gases, they condense to a liquid. This process occurs because saturated gases are in a state where both gas and vapor can coexist at a particular temperature and pressure. As heat is removed, the energy of the molecules in the gas decreases, leading to a reduction in their ability to move freely. Consequently, the molecules start to come closer together and transition into a liquid state.

This fundamental concept is crucial in HVAC and refrigeration systems, where the phase change from gas to liquid is often exploited to remove heat from a designated area effectively. Understanding this phase transition is vital for the operation of various components like condensers and evaporators in refrigeration cycles.