KCET2020ChemistryThermodynamics (C)
When the same quantity of heat is absorbed by a system at two different temperatures T₁ and T₂ , such that T₁>T₂ , change in entropies are S₁ and S₂ respectively. Then
Options
- AS₁ < S₂
- BS₁= S₂
- CS₁>S₂
- DS₂ < S₁
Correct answer
A. S₁ < S₂
Step-by-step solution
We know, S= q_ rev T Here, S₁= q_ rev T₁ and S₂= q_ rev T₂ Here, q_ rev is same in both the cases and T₁>T₂ When denominator is larger, the value is lesses. So, S₁ < S₂