At 300 K, for the reaction A → P, the ∆Ssys is 5 J K-1 mol-1. What is the heat absorbed (in kJ mol-1) by the system?
At 300 K, for the reaction A → P, the ∆Ssys is 5 J K-1 mol-1. What is the heat absorbed (in kJ mol-1) by the system?
Show Hint
- 1.5
- 15
- 1500
- 0.6
The Correct Option is A
Solution and Explanation
Step 1: Using the relation between heat and entropy
- From thermodynamics, \[ q = T \Delta S_{sys} \] where \( q \) is heat absorbed, \( T \) is temperature, and \( \Delta S \) is entropy change.
Step 2: Substituting values \[ q = (300 K) \times (5 J K^{-1} mol^{-1}) \] \[ = 1500 J mol^{-1} \] \[ = 1.5 \text{ kJ mol}^{-1} \]
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