Thermodynamics for Chemical

Entropy is a measure of the _____________ of a system?

Byadmin March 12, 2019August 29, 2021

Entropy is a measure of the _____________ of a system?

A. Disorder
B. Orderly behaviour
C. Temperature changes only
D. None of these

Thermodynamics for Chemical

A two stage compressor is used to compress an ideal gas. The gas is cooled to the initial temperature after each stage. The intermediate pressure for the minimum total work requirement should be equal to the _____________ mean of P1 and P2.(where, P1 and P2 are initial and final pressures respectively) ?

A two stage compressor is used to compress an ideal gas. The gas is cooled to the initial temperature after each stage. The intermediate pressure for the minimum total work requirement should be equal to the _____________ mean of P1 and P2.(where, P1 and P2 are initial and final pressures respectively) ?

A. Logarithmic
B. Arithmetic
C. Geometric
D. Harmonic

Read More A two stage compressor is used to compress an ideal gas. The gas is cooled to the initial temperature after each stage. The intermediate pressure for the minimum total work requirement should be equal to the _____________ mean of P1 and P2.(where, P1 and P2 are initial and final pressures respectively) ?
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

High pressure steam is expanded adiabatically and reversibly through a well insulated turbine, which produces some shaft work. If the enthalpy change and entropy change across the turbine are represented by ΔH and ΔS respectively for this process ?

High pressure steam is expanded adiabatically and reversibly through a well insulated turbine, which produces some shaft work. If the enthalpy change and entropy change across the turbine are represented by ΔH and ΔS respectively for this process ?

A. Δ H = 0 and ΔS = 0
B. Δ H ≠ 0 and ΔS = 0
C. Δ H ≠ 0 and ΔS ≠ 0
D. Δ H = 0 and ΔS ≠ 0

Read More High pressure steam is expanded adiabatically and reversibly through a well insulated turbine, which produces some shaft work. If the enthalpy change and entropy change across the turbine are represented by ΔH and ΔS respectively for this process ?
Thermodynamics for Chemical

The expression for entropy change given by, ΔS = nR ln (V2/V1) + nCv ln (T2/T1) is valid for ______________________?

The expression for entropy change given by, ΔS = nR ln (V2/V1) + nCv ln (T2/T1) is valid for ______________________?

A. Reversible isothermal volume change
B. Heating of a substance
C. Cooling of a substance
D. Simultaneous heating and expansion of an ideal gas

Read More The expression for entropy change given by, ΔS = nR ln (V2/V1) + nCv ln (T2/T1) is valid for ______________________?
Thermodynamics for Chemical

What happens in a reversible adiabatic compression ?

What happens in a reversible adiabatic compression ?

A. Heating occurs
B. Cooling occurs
C. Pressure is constant
D. Temperature is constant

Read More What happens in a reversible adiabatic compression ?
Thermodynamics for Chemical

For a multi-component system, the term chemical potential is equivalent to the ___________________?

For a multi-component system, the term chemical potential is equivalent to the ___________________?

A. Molal concentration difference
B. Molar free energy
C. Partial molar free energy
D. Molar free energy change

Read More For a multi-component system, the term chemical potential is equivalent to the ___________________?

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