Question

(c) 20°C
Q. 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
(d) Between 30°C and 50°C
Answer: (d) Between 30°C and 50°C​

Answer 1

Answer:

Hey buddy here is your ans

Opt d

Explanation:

when 30°C water is mixed with 50°C water,

Heat transfer will take place in a way such that  both the parts in the mixture will have Equal Temperature.

⇒Heat transfer will happen from 50°C to 30°C.

The temperature of the mixture is

(50+30)/2=40°C

Hence the temperature of the mixture will be

Between 30°C and 50°C

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Answer 2

Answer:

The temperature of the mixture will be between 30°C and 50°C because hot water loses the heat and simultaneously cold water gains heat this keeps the temperature in between 30°C and 50°C.