Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Electrochemistry
In which case change in entropy is negative?
1
2H(g) → H2(g)
2
Expansion of a gás at constant temperature
3
Sublimation of solid to gas
4
More than one of the above
5
None of the above