bomb before the explosion. 3) The total momentum of the bomb fragments is zero.

Question

bomb before the explosion. 3) The total momentum of the bomb fragments is zero. b) (1) and (2) only c) (3) only a) (1) only d) (2) and (3) only e) all are true (15 pts.) 50 grams of ice at -20 °C is placed in a glass containing 100 grams of liquid water at 10°C. Assume that there is no heat transfer from the water to the glass or the environment. 4. LF 333 Jig Cice 2.22 J/g°C Cwater 4.190 J/g°C a) find how much energy is available in cooling the water to 0°c b) find how much energy is needed to warm the ice to o°c

Explanation / Answer

Here ,

a) for the available energy

Energy available = 100 * 4.19 * (10 - 0)

Energy available = 4190 J

b)

energy needed to warm ice = 50 * 2.22 * (20)

energy needed to warm ice = 2220 J

c)

energy needed to melt ice = 50 * 333

energy needed to melt ice = 16650 J

d)

for the ice melted is m

m * 333 = 4190 - 2220

m = 5.92 gm

the amount of ice melted is 5.92 gm

e)

3) Some ice , some liquid at 0 C

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