Properties Of Solids And Liquids Question 21
Question: 540 g of ice at 0°C is mixed with 540 g of water at 80°C. The final temperature of the mixture is [AFMC 1994]
Options:
A) 0°C
B) 40°C
C) 80°C
D) Less than 0°C
Show Answer
Answer:
Correct Answer: A
Solution:
Heat taken by ice to melt at 0°C is
Heat given by water to cool upto 0°C is
Hence heat given by water is just sufficient to melt the whole ice and final temperature of mixture is 0°C.
Short trick : For these type of frequently asked questions you can remember the following formula
(See theory for more details) If
then
