Question
Question: When 10 gm of ice at –20 <sup>0</sup>C is mixed with 10 gm of water at 50 <sup>0</sup>C, the amount ...
When 10 gm of ice at –20 0C is mixed with 10 gm of water at 50 0C, the amount of ice melted is –
A
2 gm
B
3 gm
C
4 gm
D
5 gm
Answer
5 gm
Explanation
Solution
Q = q1 + q2
10 × 1 × 50 = 10 × 0.5 × 20 + 80 x
x = 5 gm