Which consequence results when the refrigerant undergoes rapid throttling in a vapor-compression refrigeration cycle?

💡 Explanation

Icing results because rapid throttling causes a pressure drop and subsequent temperature decrease via the Joule-Thomson effect. This causes water vapor to condense and freeze, therefore lowering efficiency, rather than improving heat transfer or system superheat/subcool that would occur under different conditions.

• Which risk increases when optically pumped rubidium vapor lacks polarization control?
• Which outcome results when viscosity increases within pumped hydraulic systems?
• Which outcome results from energy addition under mass-energy equivalence?
• Which instability arises when exceeding a rocket's altitude limit?
• Which outcome occurs when atmospheric ozone absorbs ultraviolet radiation?
• Which consequence results when spatial coherence decreases in an optical parametric amplifier array?