1 litre of water at 40°C is mixed with 1 litre of water at 60°C. W

1.	1 litre of water at 40°C is mixed with 1 litre of water at 60°C. What will be the approximate temperature of water after a certain time?1. 100°C 2. Between 40°C and 60°C3. More than 60°C but less than 100°C4. 20°C
Answer» Correct Answer - Option 2 : Between 40°C and 60°C Given One liter of water at 40°C is mixed with one liter of water at 60°C Calculation One liter of water at 40°C is mixed with one liter of water at 60°C Volume of both are same Heat will transfer from higher temperature water to lower temperature water Means from 60°C to 40°C Hence 60°C temperature will decrease because of heat transferred to 40°C And 40°C temperature will increase ⇒ Temperature will be between 40°C and 60°C One liter of water at 40°C is mixed with one liter of water at 60°C. ∴ The temperature of the mixture will be between 40°C and 60°C.

1 litre of water at 40°C is mixed with 1 litre of water at 60°C. What will be the approximate temperature of water after a certain time?1. 100°C 2. Between 40°C and 60°C3. More than 60°C but less than 100°C4. 20°C

Answer» Correct Answer - Option 2 : Between 40°C and 60°C

Given

One liter of water at 40°C is mixed with one liter of water at 60°C

Calculation

One liter of water at 40°C is mixed with one liter of water at 60°C

Volume of both are same

Heat will transfer from higher temperature water to lower temperature water

Means from 60°C to 40°C

Hence 60°C temperature will decrease because of heat transferred to 40°C

And 40°C temperature will increase

⇒ Temperature will be between 40°C and 60°C

One liter of water at 40°C is mixed with one liter of water at 60°C.

∴ The temperature of the mixture will be between 40°C and 60°C.

Discussion

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