- #1

Julieh

- 6

- 0

## Homework Statement

Suppose that 0.250 kg of ice and 0.300 kg of water in thermal equilibrium are heated to 60°C by being mixed with M kg of steam at 100°C. Use Lice melting = 3.30 x 105 J/kg, Lwater vaporizing= 2.30 x 106 J/kg, and cwater = 4.2 x 103 J/kg°C.

(a) Write an expression for Q1, the heat gained by the ice-and-water system. Be sure to include the heat involved in both melting the ice and raising the temperature of the melted ice and water

Write an expression for Q2, the heat lost by the steam. Include both the heat to condense the steam and to lower the temperature of the resulting liquid water. (3)

(c) Equate the sum of the expressions from (a) and (b) with zero, and find the value of M. How much water will be in the final mixture

## Homework Equations

heat gained=heat lost

q1=Mice*Lice+Cwater*Mice*change in temperature

q2=Msteam*Lvaporization+Cwater*Mwater*Change in themperature of water

## The Attempt at a Solution

when i sum up the equations together and equate them to 0 the answer that i got is -0.1 kg, and mass can not be negative