Values of ∆H and ∆S for five different reactions are given below. Reaction DH(\text{kJ mol}^{-1}) DS(\text{JK}^{-1} \text{mol^{-1}}) I +98.0 +14.8 II -55.5 -84.8 III +28.3 -17.0 IV -40.5 +24.6 V +34.7 0.0 On the basis of these values predict which one of these will be spontaneous at all temperatures?

Correct Answer is : Reaction IV

NEET Exam Model Paper 15

Question : 155 of 180

Marks: +1, -0

Values of ∆H and ∆S for five different reactions are given below.

On the basis of these values predict which one of these will be spontaneous at all temperatures?

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