For the preparation of polycrystalline solids (i.e. powder), a mixture of solid starting materials directly react with each other in the solid state. What is the range of the temperature usually required for the solids to react together in Celsius?
A
25 to 37
B
-25 to 0
C
2000 to 3000
D
1000 to 1500
Answer:
The correct option is D. 1000 to 1500
Note
Solids don’t react usually at room temperature over normal scale timescale, It is required to heat them at much higher temperature often 1000◦C to 1500◦C, in order for a reaction to occur at an appreciable rate.