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If 200 g of water at 80°C is mixed with 300 g of water at 20°C, what will be the final temperature of the mixture? (2019)

Practice Questions

1 question
Q1
If 200 g of water at 80°C is mixed with 300 g of water at 20°C, what will be the final temperature of the mixture? (2019)
  1. 30°C
  2. 40°C
  3. 50°C
  4. 60°C

Questions & Step-by-step Solutions

1 item
Q
Q: If 200 g of water at 80°C is mixed with 300 g of water at 20°C, what will be the final temperature of the mixture? (2019)
Solution: Using the formula m1c1T1 + m2c2T2 = (m1 + m2)cT, we find T = (200*80 + 300*20) / (200 + 300) = 40°C.
Steps: 0

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