Physics

Problem

A calorimeter of water equivalent 20 g contains 180 g of water at

25^\circ\text{C}

. '

m

' grams of steam at

100^\circ\text{C}

is mixed in it till the temperature of the mixture is

31^\circ\text{C}

. The value of '

m

' is close to (Latent heat of water =

540 \text{ cal g}^{-1}

, specific heat of water =

1 \text{ cal g}^{-1} \text{ }^\circ\text{C}^{-1}

) a. 2 b. 4 c. 3.2 d. 2.6