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NEET Chemistry Thermodynamics Class 11 Questions

174 questions

Which of the following statement is correct?

MCQmedium

On the basis of thermochemical equations (1), (2) and (3), find out which of the relationships given in options (a) to (d) is correct 1. C(graphite) + O₂(g) → CO₂(g); ΔH = x kJmol⁻¹ 2. C(graphite) + 1/2 Ω₂(g) → CO(g); ΔH = y kJmol⁻¹ 3. CO(g) + 1/2 Ω₂(g) → CO₂(g); ΔH = z kJmol⁻¹

MCQmedium

A reaction proceeds through two paths I and II to convert X → Z. What is the correct relationship between Q, Q₁ and Q₂? (Q represents internal energy here)

MCQmedium

What is the Gibbs free energy equation?

MCQeasy

What is the value of K for strongly endothermic reactions?

MCQeasy

What is the change in internal energy, ∆U, of a system at constant volume when no work is done?

MCQeasy

What does ∆U represent in a process carried out at constant volume?

MCQeasy

What is the enthalpy change associated with the addition of a specified amount of solute to a specified amount of solvent at constant temperature called?

MCQeasy

What is the value of the enthalpy change for the enthalpy of atomization of hydrogen (H–H bond)?

MCQeasy

What does the first law of thermodynamics state about the energy of an isolated system?

MCQeasy

Which of the following statements about entropy is correct?

MCQeasy

What does the first law of thermodynamics state about the energy of an isolated system?

MCQeasy

What is the value of the enthalpy of atomization for dihydrogen (H2)?

MCQhard

What happens to the value of ∆ r H  when a chemical equation is reversed?

MCQeasy

What is the enthalpy change (∆H) for the dilution of a solution, as mentioned in the NCERT context?

MCQhard

Which of the following properties is classified as an intensive property?

MCQhard

What does a negative Gibbs free energy change (∆G) indicate about a chemical reaction?

MCQhard

What does the equation ∆U = q + w represent in thermodynamics?

MCQhard

What does the equation ∆U = q + w represent in the context of the First Law of Thermodynamics?

MCQhard

What happens to the entropy of a system when a crystalline solid is heated from absolute zero to a higher temperature?

MCQhard

What does Hess's Law state about the change in enthalpy for a reaction that occurs in multiple steps?

MCQhard

What is the symbol for the standard molar enthalpy of formation?

MCQmedium

What is the symbol for the standard molar enthalpy of formation?

MCQmedium

What is the standard Gibbs energy change, ∆ r G , at the given temperature for a certain reaction?

MCQmedium

What is the relationship between Gibbs Free Energy and the equilibrium constant Kp?

MCQmedium

Which of the following statements about entropy is true?

MCQmedium

What is the standard enthalpy of formation (∆fH°) for water (H2O, l)?

MCQmedium

What does the equation ∆U = q + w represent in thermodynamics?

MCQmedium

What does the equation ∆U = q + w represent in the context of the First Law of Thermodynamics?

MCQmedium

What is the enthalpy change (∆rH°) for the reaction forming NO(g) from its elements under standard conditions?

MCQmedium

What happens to the value of ∆rH° when a chemical equation is reversed?

MCQmedium

Which of the following statements about Gibbs Free Energy (∆rG°) is correct?

MCQeasy

Which of the following statements regarding isothermal processes and internal energy are correct?

MCQeasy

Which of the following statements about the heat of reaction and standard enthalpy of formation is correct?

MCQeasy

Which of the following statements about the First Law of Thermodynamics is correct?

MCQeasy

Which of the following combinations correctly describe the behavior of entropy in a system?

MCQeasy

Which of the following statements about Hess's Law is correct?

MCQeasy

Which of the following statements about Gibbs Free Energy is correct?

MCQhard

Which of the following combinations about Gibbs Free Energy and spontaneity is correct?

MCQhard

Which of the following combinations accurately reflects the principles of the first law of thermodynamics?

MCQhard

Which of the following combinations correctly represent the implications of the First Law of Thermodynamics?

MCQhard

Which combination of statements about thermodynamic processes is correct?

MCQhard

Which of the following combinations correctly describe the effect of entropy in a system?

MCQhard

Which of the following statements regarding Hess's Law is correct?

MCQhard

Which of the following statements about Gibbs Free Energy is correct?

MCQmedium

Which of the following statements about standard molar enthalpy of formation (∆fH°) is correct?

MCQmedium

Which of the following statements about thermodynamic processes is correct?

MCQmedium

Which of the following combinations correctly describes the First Law of Thermodynamics?

MCQmedium

Which of the following statements about the First Law of Thermodynamics is correct?

MCQmedium

Calculate the enthalpy change for the reaction where 2 moles of Na(s) are converted into Na(g) using the given enthalpy of atomization.

MCQeasy

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