NEET Physics Laws of Thermodynamics MCQ Question
Considering the laws of thermodynamics, which of the following best describes the energy change during the sublimation of sodium metal (Na(s) to Na(g))?
Energy is absorbed, increasing the system's internal energy.
Energy is released, decreasing the system's internal energy.
Energy remains constant, as it is a closed system.
Energy is absorbed, but the internal energy remains unchanged.
Correct Answer
Detailed Explanation
During the sublimation of sodium metal, energy is absorbed to convert the solid to gas, increasing the system's internal energy, consistent with the first law of thermodynamics.
Found an issue with this question?
Related Questions
More from
Which of the following statements about enthalpy changes in thermodynamics is correct?
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?