NEET Physics Heat Engines MCQ Question
Which of the following statements about thermodynamics and chemical reactions is correct?
An increase in disorder during a reaction leads to an increase in entropy.
Exothermic reactions always have a positive change in enthalpy.
The equilibrium constant can be used to directly calculate the change in Gibbs free energy.
All chemical reactions result in a decrease in entropy regardless of the reactants and products.
Correct Answer
Detailed Explanation
An increase in disorder corresponds to an increase in entropy, as indicated in the context where greater disorder in a system leads to higher entropy. The other options reflect misconceptions about enthalpy and entropy changes in reactions.
Found an issue with this question?
Related Questions
More from
What is the enthalpy change associated with the atomization of dihydrogen (H2)?
For a strongly endothermic reaction, what is the expected value of the equilibrium constant K?
For an adiabatic expansion of an ideal gas, if the initial internal energy is 500 J and the work done on the system is -200 J, what is the final inter...