Properties Of Solids And Liquids Question 90
Question: A vessel contains 110 g of water. The heat capacity of the vessel is equal to 10 g of water. The initial temperature of water in vessel is 10°C. If 220 g of hot water at 70°C is poured in the vessel, the final temperature neglecting radiation loss, will be [UPSEAT 2000]
Options:
A) 70°C
B) 80°C
C) 60°C
D) 50°C
Show Answer
Answer:
Correct Answer: D
Solution:
Let final temperature of water be q
Heat taken = Heat given 110 ´1 (q - 10) + 10 (q - 10) = 220 ´ 1 (70 - q)
therefore q = 48.8°C » 50°C.
