Questions
19 g of water at 30°C and 5 g of ice at -20°C are mixed together in a calorimeter. What is the final temperature of the mixture? (Given, specific heat of ice = 0.5 cal g-1 (C0)-1 and latent heat of fusion of ice = 80 cal g-1)
detailed solution
Correct option is C
Heat gained = Heat lost⇒5×0.5×20+5×80+5×1×(θ-0)=19×1×(30-θ) ⇒ θ=5oCTalk to our academic expert!
Similar Questions
Consider the following statements.
(A) The steam at 100°C causes more severe burn to human body than the water at 100°C.
(B) The steam has greater internal energy than water due to latent heat of vaporization.
Select the correct option.
(a) (A) is false but (B) is true.
(b) Both (A) and (B) are true.
(c) (A) is true but (B) is false.
(d) Both (A) and (B) are false.
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