Thermodynamics for Chemical

Which of the following non-flow reversible compression processes require maximum work ?

Byadmin March 11, 2019August 29, 2021

Which of the following non-flow reversible compression processes require maximum work ?

A. Adiabatic process
B. Isothermal process
C. Isobaric process
D. All require same work

CHEMICAL ENGINEERING | Thermodynamics for Chemical

What is the value of maximum COP in case of absorption refrigeration, if refrigeration provided is at temperature, TR (where, T1 and T2 are source & surrounding temperatures respectively.) ?

What is the value of maximum COP in case of absorption refrigeration, if refrigeration provided is at temperature, TR (where, T1 and T2 are source & surrounding temperatures respectively.) ?

A. TR/(T2 – TR) × (T1 – T2)/T1
B. TR/(T2 – TR) × T1/(T1 – T2)
C. TR/(T1 – TR) × (T1 – T2)/T1
D. None of these

Read More What is the value of maximum COP in case of absorption refrigeration, if refrigeration provided is at temperature, TR (where, T1 and T2 are source & surrounding temperatures respectively.) ?
Thermodynamics for Chemical

Cp of a gas at its critical temperature and pressure_______________?

Cp of a gas at its critical temperature and pressure_______________?

A. Becomes zero
B. Becomes infinity
C. Equals 1 kcal/kmol °K
D. Equals 0.24 kcal/kmol °K

Read More Cp of a gas at its critical temperature and pressure_______________?
Thermodynamics for Chemical

Vapour which is at a pressure smaller than the saturation pressure for the temperature involved is called a _____________ vapour?

Vapour which is at a pressure smaller than the saturation pressure for the temperature involved is called a _____________ vapour?

A. Superheated
B. Desuperheated
C. Non-condensable
D. None of these

Read More Vapour which is at a pressure smaller than the saturation pressure for the temperature involved is called a _____________ vapour?
Thermodynamics for Chemical

Critical solution temperature (or the con-solute temperature) for partially miscible liquids (e.g., phenol-water) is the minimum temperature at which___________________?

Critical solution temperature (or the con-solute temperature) for partially miscible liquids (e.g., phenol-water) is the minimum temperature at which___________________?

A. A homogeneous solution (say of phenol water) is formed
B. Mutual solubility of the two liquids shows a decreasing trend
C. Two liquids are completely separated into two layers
D. None of these

Read More Critical solution temperature (or the con-solute temperature) for partially miscible liquids (e.g., phenol-water) is the minimum temperature at which___________________?
Thermodynamics for Chemical

Gibbs free energy (F) is defined as__________________?

Gibbs free energy (F) is defined as__________________?

A. F = E – TS
B. F = H – TS
C. F = H + TS
D. F = E + TS

Read More Gibbs free energy (F) is defined as__________________?
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 ?

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