A bartender mixes 0.1 liter of alcohol which is at room temperature (= 300 K)with 0.3 liter of soda water out of the refrigerator (temperature = 280 K).In this process,

Question

Quizplus · Accepted Answer

When two substances at different temperatures are mixed, heat flows from the warmer one to the colder one until they reach thermal equilibrium. Therefore, in this case, heat will flow from the alcohol (at 300 K) to the soda water (at 280 K). As a result, the entropy of the water will increase due to the absorption of heat, while the entropy of the alcohol will decrease due to its loss of heat. The net change in entropy will depend on the specific heat capacities of the substances, but since the question does not provide that information, we cannot determine the exact values. However, we can conclude that the entropy of the system as a whole (alcohol + water) has increased, as is expected in any spontaneous process.

A Bartender Mixes 0