Q26 · CSIR NET Chemistry, December 2017
Paper: CSIR NET December 2017 · Subject: Inorganic Chemistry · Chapter: Analytical Chemistry · Topic: Analytical Chemistry – General · Marks: 2 · Difficulty: Medium
The peak area of differential thermal analysis curve is proportional to one or more of the following A. mass loss B. mass of the sample C. heat of decomposition / phase change The correct answer is:
(a)A only
(b)B only
(c)A and C
(d)B and C
Answer
Answer: D ✓ checked by 4AB · confidence high
Explanation
The DTA peak area is proportional to the mass of the sample and to the enthalpy of the decomposition or phase change (B and C); it does not measure mass loss (that is TGA).
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