A researcher is testing the effectiveness of four different cryogenic coolant mixtures, Alpha, Beta, Gamma, and Delta, to determine which one produces the largest temperature drop. The recorded starting temperatures, finishing temperatures, and the researcher's calculated temperature drops are shown below:
- Coolant Alpha: Starting temperature = −18.5∘C-18.5^\circ\text{C}−18.5∘C, Finishing temperature = −42.3∘C-42.3^\circ\text{C}−42.3∘C, Calculated temperature drop = 24.8∘C24.8^\circ\text{C}24.8∘C
- Coolant Beta: Starting temperature = −18.5∘C-18.5^\circ\text{C}−18.5∘C, Finishing temperature = −49.1∘C-49.1^\circ\text{C}−49.1∘C, Calculated temperature drop = 30.6∘C30.6^\circ\text{C}30.6∘C
- Coolant Gamma: Starting temperature = −18.5∘C-18.5^\circ\text{C}−18.5∘C, Finishing temperature = −55.8∘C-55.8^\circ\text{C}−55.8∘C, Calculated temperature drop = 36.3∘C36.3^\circ\text{C}36.3∘C
- Coolant Delta: Starting temperature = −18.5∘C-18.5^\circ\text{C}−18.5∘C, Finishing temperature = −62.4∘C-62.4^\circ\text{C}−62.4∘C, Calculated temperature drop = 44.9∘C44.9^\circ\text{C}44.9∘C
Which coolant mixture has results that are correctly calculated?