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Thermodynamics for Chemical

Lowering of condenser temperature (keeping the evaporator temperature constant) in case of vapour compression refrigeration system results in__________________?

Thermodynamics for Chemical /
Lowering of condenser temperature (keeg the evaporator temperature constant) in case of vapour compression refrigeration system results in__________________?

A. Increased COP
B. Same COP
C. Decreased COP
D. Increased or decreased COP; depending upon the type of refrigerant

Lowering of condenser temperature (keeping the evaporator temperature constant) in case of vapour compression refrigeration system results in__________________? Read More »

Thermodynamics for Chemical

In an isothermal process on an ideal gas, the pressure increases by 0.5 percent. The volume decreases by about _____________ percent?

Thermodynamics for Chemical /
In an isothermal process on an ideal gas, the pressure increases by 0.5 percent. The volume decreases by about _____________ percent?

A. 0.25
B. 0.5
C. 0.75
D. 1

In an isothermal process on an ideal gas, the pressure increases by 0.5 percent. The volume decreases by about _____________ percent? Read More »

Thermodynamics for Chemical

When liquid and vapour phase of multi-component system are in equilibrium (at a given temperature and pressure), then chemical potential of each component is___________________?

Thermodynamics for Chemical /
When liquid and vapour phase of multi-component system are in equilibrium (at a given temperature and pressure), then chemical potential of each component is___________________?

A. Same in both the phases
B. Zero in both the phases
C. More in vapour phase
D. More in liquid phase

When liquid and vapour phase of multi-component system are in equilibrium (at a given temperature and pressure), then chemical potential of each component is___________________? Read More »

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___________________?

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___________________?

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

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

Thermodynamics for Chemical

Maxwell’s relation corresponding to the identity, dH = dS = Vdp + Σμi dni is_____________________?

Thermodynamics for Chemical /
Maxwell’s relation corresponding to the identity, dH = dS = Vdp + Σμi dni is_____________________?

A. (∂T/∂V)S, ni = -(∂P/∂S)V, ni
B. (∂S/∂P)T, ni = (∂V/∂T)P, ni
C. (∂S/∂V)T, ni = (∂P/∂T)V, ni
D. (∂T/∂P)S, ni = (∂V/∂S)P, ni

Maxwell’s relation corresponding to the identity, dH = dS = Vdp + Σμi dni is_____________________? Read More »

Thermodynamics for Chemical