Chemical Engineering :: Chemical Engineering Thermodynamics
- Pick out the undesirable property for a good refrigerant.
- A solid metallic block weighing 5 kg has an initial temperature of 500°C. 40 kg of water initially at 25°C is contained in a perfectly insulated tank. The metallic block is brought into contact with water. Both of them come to equilibrium. Specific heat of block material is 0.4 kJ.kg⁻¹. K⁻¹. Ignoring the effect of expansion and contraction and also the heat capacity to tank, the total entropy change in kJ.kg⁻¹ , K⁻¹ is
- Isotherm on an enthalpy-concentration diagram, for an ideal solution will be a
- Choose the condition that must be specified in order to liquify CO₂ (triple point for CO₂ is - 57°C and 5.2 atm).
- When a system is in equilibrium for all possible processes, the differential or finite change of entropy is
- Consider the reaction, C + O₂ ⇋ CO₂ ;ΔH = - 94 kcal. What will be the value of ΔH for the reaction CO₂ → C + O₂?
- Which of the following units is not present in both the vapor compression refrigeration system and absorption refrigeration system ?
- Heat evolved/absorbed during conversion of a substance from one allotropic form to another is termed as the heat of
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