First slide

Questions based on phase change

Question

100 g of ice is mixed with 100 g of water at 100°C. What will be the final temperature of the mixture?

Moderate

A

40°C
B

30°C
C

20°C
D

10°C

Solution

$100 \times 80 + 100 \times 1 \times (θ - 0) = 100 \times 1 \times (100 - θ) \Rightarrow θ = 10^{o} C$

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