SSC SSC JE Mechanical 2025 Mock Test Series (Paper 1 & Paper 2) Thermodynamics Properties of Pure Substances Phase Change of a Pure Substance
A substance is pure if
(A) It exists in one phase
(B) It is a one component system
(C) It has constant chemical composition.
Chose the correct option.
1
A, B
2
B, C
3
C, A
4
A, B, C