Thermodynamics for Chemical

Gibbs-Helmholtz equation is__________________?

Byadmin March 12, 2019August 29, 2021

Gibbs-Helmholtz equation is__________________?

A. ΔF = ΔH + T [∂(ΔF)/∂T]P
B. ΔF = ΔH – TΔT
C. d(E – TS) T, V < 0
D. dP/dT = ΔHvap/T.ΔVvap

Thermodynamics for Chemical

In an ideal refrigeration cycle, the change in internal energy of the fluid is_____________?

In an ideal refrigeration cycle, the change in internal energy of the fluid is_____________?

A. +ve
B. -ve
C. 0
D. Either of the above three; depends on the nature of refrigerant

Read More In an ideal refrigeration cycle, the change in internal energy of the fluid is_____________?
CHEMICAL ENGINEERING | Thermodynamics for Chemical

Change of heat content when one mole of compound is burnt in oxygen at constant pressure is called the__________________?

Change of heat content when one mole of compound is burnt in oxygen at constant pressure is called the__________________?

A. Calorific value
B. Heat of reaction
C. Heat of combustion
D. Heat of formation

Read More Change of heat content when one mole of compound is burnt in oxygen at constant pressure is called the__________________?
Thermodynamics for Chemical

The first law of thermodynamics is a restatement of the law of conservation of_________________?

The first law of thermodynamics is a restatement of the law of conservation of_________________?

A. Mass
B. Energy
C. Momentum
D. None of these

Read More The first law of thermodynamics is a restatement of the law of conservation of_________________?
CHEMICAL ENGINEERING | Thermodynamics for Chemical

What is the value of ln y (where y = activity co-efficient) for ideal gases ?

What is the value of ln y (where y = activity co-efficient) for ideal gases ?

A. Zero
B. Unity
C. Infinity
D. Negative

Read More What is the value of ln y (where y = activity co-efficient) for ideal gases ?
Thermodynamics for Chemical

In an ideal gas mixture, fugacity of a species is equal to its___________________?

In an ideal gas mixture, fugacity of a species is equal to its___________________?

A. Vapor pressure
B. Partial pressure
C. Chemical potential
D. None of these

Read More In an ideal gas mixture, fugacity of a species is equal to its___________________?
CHEMICAL ENGINEERING | Thermodynamics for Chemical

What is the number of degree of freedom for a system of two miscible non-reacting species in vapor-liquid equilibrium forming an azeotrope ?

What is the number of degree of freedom for a system of two miscible non-reacting species in vapor-liquid equilibrium forming an azeotrope ?

A. 0
B. 2
C. 1
D. 3

Read More What is the number of degree of freedom for a system of two miscible non-reacting species in vapor-liquid equilibrium forming an azeotrope ?

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