Final answer:
The final temperature of a hot drink after evaporation can be calculated using the mass of the drink that has evaporated and the latent heat of vaporization. The heat absorbed by the evaporating liquid is lost by the remaining liquid, causing its temperature to decrease. Without specific heat values, we cannot provide a precise answer.
Step-by-step explanation:
The question is about the change in temperature of hot drinks after some of the liquid has evaporated. Specifically, we are asked to calculate the final temperature of 250 g of coffee initially at 90.0°C if 2.00 g evaporates from it. The key principle here is that for a liquid to evaporate, it must absorb heat energy from its surroundings, which in this case is the coffee itself. This absorption of heat by the vaporizing liquid will cause the temperature of the remaining liquid to decrease. However, other variables such as the specific heat of the liquid and the latent heat of vaporization are necessary to perform the calculation. Unfortunately, without these values, we cannot provide an exact answer to the question. Normally, this type of problem would be solved using the formula q = m × L, where q is the heat absorbed or released, m is the mass of the liquid that evaporates, and L is the latent heat of vaporization. The heat lost by the evaporating mass would equal the heat lost by the remaining coffee, and from there, one could calculate the final temperature of the coffee.