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  • One litre of water at 30°C is mixed with one litre of water at 50°C. The temperature of the mixture will be

8. One litre of water at 30°C is mixed with one litre of water at 50°C. The temperature of the mixture will be

(a) 80°C

(b) more than 50°C but less than 80°C

(c) 20°C

(d) between 30°C and 50°C

Answers (1)

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If one litre of water at 30\degree C is mixed with one litre of water at 50\degree C. Then, the temperature of the mixture will be

(d) between 30\degree C and  50\degree C

Because as the volume of both the liquids with temperature  30\degree C and  50\degree C is equal. Therefore, when we add both the liquids there is transferred of heat take place from a liquid with high temperature to a liquid with a low temperature. That's why temperature is between 30\degree C and  50\degree C 

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