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What is the final temperature when 200 g of water at 90°C is mixed with 300 g of water at 30°C?

Practice Questions

1 question
Q1
What is the final temperature when 200 g of water at 90°C is mixed with 300 g of water at 30°C?
  1. 50°C
  2. 60°C
  3. 70°C
  4. 80°C

Questions & Step-by-step Solutions

1 item
Q
Q: What is the final temperature when 200 g of water at 90°C is mixed with 300 g of water at 30°C?
Solution: Using the formula m1*T1 + m2*T2 = (m1 + m2)*Tf, we find Tf = (200*90 + 300*30) / (200 + 300) = 70°C.
Steps: 0

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