Thermodynamics for Chemical

Which of the following decreases with increase in pressure ?

Byadmin March 12, 2019August 30, 2021

Which of the following decreases with increase in pressure ?

A. Melting point of ice
B. Melting point of wax
C. Boiling point of liquids
D. None of these

Thermodynamics for Chemical

Claude’s liquefaction process employs the cooling of gases by__________________?

Claude’s liquefaction process employs the cooling of gases by__________________?

A. Expansion in an engine
B. Following a constant pressure cycle
C. Throttling
D. None of these

Read More Claude’s liquefaction process employs the cooling of gases by__________________?
Thermodynamics for Chemical

Which of the following is not a common refrigerant ?

Which of the following is not a common refrigerant ?

A. Freon-12
B. Ethylene
C. Ammonia
D. Carbon dioxide

Read More Which of the following is not a common refrigerant ?
Thermodynamics for Chemical

Gibbs free energy (G) is represented by, G = H – TS, whereas Helmholtz free energy, A. is given by, A = E – TS. Which of the following is the Gibbs-Helmholtz equation ?

Gibbs free energy (G) is represented by, G = H – TS, whereas Helmholtz free energy, A. is given by, A = E – TS. Which of the following is the Gibbs-Helmholtz equation ?

A. [∂(G/T)/∂T] = – (H/T2)
B. [∂(A/T)/∂T]V = – E/T2
C. Both A. and B.
D. Neither A. nor B.

Read More Gibbs free energy (G) is represented by, G = H – TS, whereas Helmholtz free energy, A. is given by, A = E – TS. Which of the following is the Gibbs-Helmholtz equation ?
Thermodynamics for Chemical

Degree of freedom of the system ice-water-vapour will be ________________?

Degree of freedom of the system ice-water-vapour will be ________________?

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

Read More Degree of freedom of the system ice-water-vapour will be ________________?
Thermodynamics for Chemical

The following heat engine produces power of 100,000 kW. The heat engine operates between 800 K and 300 K. It has a thermal efficiency equal to 50% of that of the Carnot engine for the same temperature. The rate at which heat is absorbed from the hot reservoir is____________________?

The following heat engine produces power of 100,000 kW. The heat engine operates between 800 K and 300 K. It has a thermal efficiency equal to 50% of that of the Carnot engine for the same temperature. The rate at which heat is absorbed from the hot reservoir is____________________?

A. 100,000 kW
B. 160,000 kW
C. 200,000 kW
D. 320,000 kW

Read More The following heat engine produces power of 100,000 kW. The heat engine operates between 800 K and 300 K. It has a thermal efficiency equal to 50% of that of the Carnot engine for the same temperature. The rate at which heat is absorbed from the hot reservoir is____________________?
Thermodynamics for Chemical

Joule-Thomson Co-efficient at any point on the inversion curve is___________________?

Joule-Thomson Co-efficient at any point on the inversion curve is___________________?

A. ∞
B. +ve
C. 0
D. -ve

Read More Joule-Thomson Co-efficient at any point on the inversion curve is___________________?

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