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The standard reaction Gibbs energy for a chemical reaction at an absolute temperature T is given by
ΔrGº = A – BT
Where A and B are non-zero constants. Which of the following is TRUE about this reaction ?
  • a)
    Exothermic if B < 0
  • b)
    Exothermic if A > 0 and B < 0
  • c)
    Endothermic if A < 0 and B > 0
  • d)
    Endothermic if A > 0
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
The standard reaction Gibbs energy for a chemical reaction at an absol...
Actual equation, ∆G = ∆H - T∆S

here, ∆H = A and ∆S = B

and we know that, endothermic process means ∆H >0
i.e, A>0 and exothermic process means ∆H<0 i.e,=""><0.>
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Community Answer
The standard reaction Gibbs energy for a chemical reaction at an absol...
The standard reaction Gibbs energy for a chemical reaction at an absolute temperature T is given by the equation:

ΔG° = ΔH° - TΔS°

Where:
- ΔG° is the standard reaction Gibbs energy (measured in joules or kilojoules)
- ΔH° is the standard enthalpy change of the reaction (measured in joules or kilojoules)
- T is the absolute temperature (measured in Kelvin)
- ΔS° is the standard entropy change of the reaction (measured in joules per Kelvin or kilojoules per Kelvin)

This equation relates the standard reaction Gibbs energy to the standard enthalpy change and the standard entropy change of a chemical reaction at a given temperature.
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The standard reaction Gibbs energy for a chemical reaction at an absolute temperature T is given byΔrGº = A – BTWhere A and B are non-zero constants. Which of the following is TRUE about this reaction ?a)Exothermic if B < 0b)Exothermic if A > 0 and B < 0c)Endothermic if A < 0 and B > 0d)Endothermic if A > 0Correct answer is option 'D'. Can you explain this answer?
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