1) From the figure of cooling curve find the following: (a) Pouring temperature (b) Cooling rate (c) Solidus temperature (d) Super heating (e) Super cooling (f) Solidification range 800 (g) Local solidification time (h) Total solidification time 600 400 10 Time (min) 2) From the figure of cooling curve find the following: (a) Pouring temperature (b) Cooling rate (c) Liquidus temperature (d) Solidus temperature 300 (e) Super heating (f) Super cooling (g) Solidification range (h) Local solidification time 200 (i) Total solidification time 100- 4 12 16 20 24 28 32 36 Times (sec) Temperature (C) Temperature (°C)

13. For the heterogeneous solidification, derive the critical radius of solid nucleus r*, the activation free energy of nucleation AG*, and the number of stable nuclei n*.

In a melting point phase diagram what do you mean by the eutectic point? How does this affect the obtained melting point range?

The point in the phase diagram where the fusion curve, the vapor pressure curve, and the sublimation curve join is called the Question 4 options:   melting point.   critical point.   double point.   boiling point.   triple point.   A sample of an ideal gas is slowly compressed to one-half its original volume with no change in temperature. What happens to the average speed of the molecules in the sample? Question 5 options:   It doubles.   It halves.   cannot be determined without more information.   It quadruples.   It does not change.     Phase changes occur Question 6 options:   as the temperature decreases.   all of the above.   none of the above.   as the temperature remains the same.   as…