At 100°C, 150gm of cold water was mixed with 40gm of water. What was the temperature of cold water if the mixture was heated to 50°C ?
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Answer:
the answer is 30
Explanation:
final temperature of the mixture =
= [ m1 * T1 + m2 * T2 ] / (m1 + m2)
= [ 50 gms * 20⁰ C + 50 gms * 40⁰C ] / (50+50)
= 3,000 / 100 = 30⁰C
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