Question

DTA can be used for which of the following process?

(a) Line positions of the crystals

(b) Mechanical properties of the crystals

(c) Phase diagrams

(d) Catalytic properties of enzymes

This question was posed to me in a job interview.

This interesting question is from Applications of DTA and TGA in chapter Thermal Analysis of Solid State Chemistry

Answer 1

Right choice is (c) Phase diagrams

To explain I would say: Differential thermal analysis is a powerful method for the determination of phase diagram, especially when used in conjunction with other techniques such as X-ray diffraction for the identification of the crystalline phases present.