Temperature 36991

Honza filled 2 liters of hot water at a temperature of 90 ° C from a heater into a five-liter container. What temperature must the water that the container fills have a mixture temperature of 42 ° C?

Correct answer:

t2 =  10 °C

Step-by-step explanation:

V1=2 l V2=5V1=52=3 l t1=90 °C t=42 °C  (V1+V2) t=V1 t1+V2 t2 (2+3) 42=2 90+3 t2  3t2=30  t2=10=10°C

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