For each pair of items, tell which has the higher entropy and explain why.

(a) Item 1, a sample of solid CO₂ at –78°C, or item 2, CO₂ vapor at 0°C 

(b) Item 1, solid sugar, or item 2, the same sugar dissolved in a cup of tea

(c) Item 1, a 100-mL sample of pure water and a 100-mL sample of pure alcohol, or item 2, the same samples of water and alcohol after they have been poured together and stirred