Chemical Thermodynamics
Maharashtra Board · Class 12 · Chemistry
Practice quiz for Chemical Thermodynamics — Maharashtra Board Class 12 Chemistry. MCQs and questions with answers to test your preparation.
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Quick Quiz: Chemical Thermodynamics
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Which of the following is an extensive property?
What is the sign of work (W) when a gas expands against external pressure?
The first law of thermodynamics is represented by which equation?
For an isothermal process involving an ideal gas, which of the following is true?
Sample Questions
Which of the following processes are reversible? (Select all correct answers)
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Isothermal expansion of ideal gas, Adiabatic compression, Slow heating at constant pressure
Reversible processes occur infinitely slowly with the system always in equilibrium. Free expansion and mixing are irreversible processes.
Which of the following are state functions? (Select all correct answers)
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Internal energy (U), Enthalpy (H), Entropy (S)
State functions depend only on the initial and final states, not on the path. U, H, and S are state functions, while Q and W are path functions.
The relationship between enthalpy and internal energy is given by:
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H = U + PV
Enthalpy is defined as H = U + PV, where U is internal energy, P is pressure, and V is volume.
For the reaction H₂O(s) → H₂O(l), the enthalpy change is called:
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Enthalpy of fusion
The conversion of solid to liquid at constant temperature and pressure is called fusion. The enthalpy change for this process is enthalpy of fusion.
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