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chemistry First Law of Thermodynamics Thermodynamics

What are Various forms of Energy?

admin April 2, 2025 No Comments

Various forms of Energy are: Heat Energy A heat is defined as a transfer (flow) of thermal energy across certain boundary (for example, from a hot body to cold via…

chemistry First Law of Thermodynamics Thermodynamics

Explain First law of Thermodynamics?

admin April 2, 2025 No Comments

The 1st Law of Thermodynamics tells us that energy is neither created nor destroyed, thus the energy of the universe is a constant. However, energy can certainly be transferred from…

chemistry First Law of Thermodynamics Thermodynamics

What is Enthalpy of a System?

admin April 2, 2025 No Comments

Let us suppose that the state of a system changes at constant Pressure. Hence there will be change in volume of the system. Suppose volume changes from V1 to V2…

chemistry First Law of Thermodynamics Thermodynamics

Prove that Inter energy is Independent of the path

admin April 2, 2025 No Comments

Let us assume that a system is changing with respect to pressure as well as volume. Let the ‘X’ be the initial state of the system and ‘Y’ is the…

chemistry First Law of Thermodynamics Thermodynamics

Show that for an ideal gas, the work differential dw is not an exact differential.

admin April 2, 2025 No Comments

We know that work differential dw is calculated as: dw= PdV ……………. (1) since volume V is a state function i.e. it is independent of the path hence dV is…

chemistry Fungi Thermodynamics

Define Enthalpy of Vaporizations and Enthalpy of Fusion

admin April 2, 2025 No Comments

Enthalpy of Vaporizations: During evaporation of liquid, some absorption of heat from surroundings takes place. Hence, Liquid evaporation is fulfilled by increase in enthalpy. The increase in enthalpy while evaporation…

chemistry First Law of Thermodynamics Thermodynamics

Derive the Relation between CP and CV in Gaseous Systems.

admin April 2, 2025 No Comments

Relation between CP and CV in gaseous systems No external work is being done when a gas is heated at constant volume i.e. gas uses all the haet which is…

chemistry First Law of Thermodynamics Thermodynamics

Show that in an Isothermal Expansion of an Ideal Gas ∆U=0 and ∆H=0

admin April 2, 2025 No Comments

(a) We know that for one mole of an ideal gas, CV = (∂U/∂T) V Therefore, dU = CV dT For a finite change, ∆U = CV ∆T As for…

chemistry First Law of Thermodynamics Thermodynamics

Calculate q, w, ∆U and ∆H for the reversible isothermal expansion of one mole of an ideal gas at 37oC from a volume of 20dm3 to a volume of 30 dm3

admin April 2, 2025 No Comments

Temperature T = 37oC = 37 + 273 = 310 K Since the process is Isothermal, Therefore, ∆U=0 and ∆H = 0 (as for an isothermal expansion of an ideal…

chemistry First Law of Thermodynamics Thermodynamics

Discuss the Expansion of an ideal gas and changes in Thermodynamic Properties.

admin April 2, 2025 No Comments

We can calculate the change in change in thermodynamic properties like q , w , ∆U , ∆H with the help of first law of thermodynamics. The expansion can be…

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  • HOME
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