Question

ASAP!!!!
ANSWER THIS QUESTION WITH EXPLANATION.....

CORRECT ANSWER WILL BE MARKED AS BRAINLIEST.....

Answer 1

Answer:

A) 22.4kcal

Explanation:

according to method of mixtures

heat lost by hot body = heat gained by cold body

heat evolved = m₁ L + m₂ c Δ t

assuming whole steam is cooled to water

m₁ = m₂ = 40g

L is latent heat of vapourization of steam = 540 cal/g

c = specific heat capacity of water = 1 cal/g°C

Δ t is change in temperature = 100 - 80

                                                = 20° C

Q = 40( 540) + 40* 1* 20

   = 21600 + 800

   = 22400 cal

    = 22.4 kcal

option a is correct

hope it helps

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