Questions
Steam at 1000C is passed into 20 g of water at 100C. When water acquires a temperature of 800C, the mass of water present will be (Take, specific heat of water = 1 calg-1 0C-1 and latent heat of steam = 540 cal g-1)
detailed solution
Correct option is D
Heat lost by system = Heat gained by water Let m' be amount of heat converted into waterm'×L=mcΔtm'×540=20×1×(80−10)⇒ m'=20×70540=2.5gNow, net mass of water = 20 + 2.5 = 22.5 gTalk to our academic expert!
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