Two insulated beakers contain different amounts of identical liquids. Beaker A contains twice as much liquid as Beaker B. The temperature of Beaker A is 80°C. The temperature of Beaker B is 40°C. An aluminum rod connects the beakers, and the system is left alone for several hours. What would you expect to find at this time?
A. The temperature of both beakers will be 80°C.
B. The temperature of both beakers will be greater than 60°C and less than 80°C.
C. The temperature of both beakers will be less than 60°C and greater than 40°C.
D. The temperature of both beakers will be 60°C
i think the answer is c
see the last problem. you do it this time.
i did the math and the answer was b it this correct?
Nope, in several hours, both will went half way (intial temp differnece is 40C, so both move 20 C, to reach final temp of 60C.
so its d
yep
To determine what would be expected after leaving the system of beakers connected for several hours, we can consider the principles of heat transfer and thermal equilibrium.
In this scenario, Beaker A contains twice as much liquid as Beaker B. Since all the liquids are identical, we can assume they have the same specific heat capacity, which means it takes the same amount of heat energy to raise the temperature of the liquids by a given amount.
When the aluminum rod connects the beakers, heat will naturally flow from the hotter beaker (Beaker A at 80°C) to the colder beaker (Beaker B at 40°C) in an attempt to establish thermal equilibrium. The aluminum rod acts as a conductor, allowing the transfer of heat between the two beakers.
Over time, the heat will continue to flow from the hotter beaker to the colder beaker until thermal equilibrium is reached. Thermal equilibrium occurs when both beakers have the same temperature.
Considering this, we would expect that the final temperature of both beakers will be somewhere between 40°C and 80°C. This means that the correct answer would be B. The temperature of both beakers will be greater than 60°C and less than 80°C.
Hence, the expected outcome after several hours is that both beakers will have a temperature greater than 60°C and less than 80°C.