Consider two identical containers of negligible mass each containining the same
ID: 881300 • Letter: C
Question
Consider two identical containers of negligible mass each containining the same amount of the same liquid. The liquid in container B is cooled to a temperature of -35 degrees C; the liquid in container A is heated to 95 degrees C. Half of the liquid from B is then poured into A. After the temperature in A stabilizes, liquid is poured from A back into B until the mass of liquid in the two containers is again the same.
a. Find the final temperature of the liquid in A.
b. Find the final temperature of the liquid in B.
Assume now that there are two different liquids initially in A and B, but they have the same density. When the experiment described above is repeated, the final temperature of the liquid remaining in A is found to be 44 degrees C. (Assume the two liquids mix uniformly when they are poured together.)
c. Find the ratio of the specific heat of the liquid originally in B to the specific heat of the liquid originally in A.
d. Find the final temperature of the liquid in B.
Explanation / Answer
1. Temp of A is 95oC
temp of B is -35oC
When B is mixed to A, final temp of A becomes= 95+(-35)= 60 oC
Now A which is at 60oC is again added to , final temp of B= 60+(-35)= 25oC