Thermodynamics for Chemical

What happens in a reversible adiabatic compression ?

Byadmin March 11, 2019August 29, 2021

What happens in a reversible adiabatic compression ?

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

Thermodynamics for Chemical

The partial pressure of each constituent present in an alloy is _____________ the total vapor pressure exerted by the alloy?

The partial pressure of each constituent present in an alloy is _____________ the total vapor pressure exerted by the alloy?

A. Less than
B. Equal to
C. More than
D. Either B. or C; depends on the type of alloy

Read More The partial pressure of each constituent present in an alloy is _____________ the total vapor pressure exerted by the alloy?
Thermodynamics for Chemical

Enthalpy changes over a constant pressure path are always zero for ______________ gas?

Enthalpy changes over a constant pressure path are always zero for ______________ gas?

A. Any
B. A perfect
C. An easily liquefiable
D. A real

Read More Enthalpy changes over a constant pressure path are always zero for ______________ gas?
Thermodynamics for Chemical

The internal energy of an ideal gas does not change in a reversible _____________ process?

The internal energy of an ideal gas does not change in a reversible _____________ process?

A. Isothermal
B. Adiabatic
C. Isobaric
D. Isometric

Read More The internal energy of an ideal gas does not change in a reversible _____________ process?
Thermodynamics for Chemical

At 60° C, vapour pressure of methanol and water are 84.562 kPa and 19.953 kPa respectively. An aqueous solution of methanol at 60° C exerts a pressure of 39.223 kPa; the liquid phase and vapour phase mole fractions of methanol are 0.1686 and 0.5714 respectively. Activity co-efficient of methanol is__________________?

At 60° C, vapour pressure of methanol and water are 84.562 kPa and 19.953 kPa respectively. An aqueous solution of methanol at 60° C exerts a pressure of 39.223 kPa; the liquid phase and vapour phase mole fractions of methanol are 0.1686 and 0.5714 respectively. Activity co-efficient of methanol is__________________?

A. 1.572
B. 1.9398
C. 3.389
D. 4.238

Read More At 60° C, vapour pressure of methanol and water are 84.562 kPa and 19.953 kPa respectively. An aqueous solution of methanol at 60° C exerts a pressure of 39.223 kPa; the liquid phase and vapour phase mole fractions of methanol are 0.1686 and 0.5714 respectively. Activity co-efficient of methanol is__________________?
Thermodynamics for Chemical

In the reaction; N2 + O2 ⇌ 2NO, increasing the pressure will result in_________________?

In the reaction; N2 + O2 ⇌ 2NO, increasing the pressure will result in_________________?

A. Shifting the equilibrium towards right
B. Shifting the equilibrium towards left
C. No change in equilibrium condition
D. None of these

Read More In the reaction; N2 + O2 ⇌ 2NO, increasing the pressure will result in_________________?
Thermodynamics for Chemical

“The fugacity of a gas in a mixture is equal to the product of its mole fraction and its fugacity in the pure state at the total pressure of the mixture”. This is__________________?

“The fugacity of a gas in a mixture is equal to the product of its mole fraction and its fugacity in the pure state at the total pressure of the mixture”. This is__________________?

A. The statement as per Gibbs-Helmholtz
B. Called Lewis-Randall rule
C. Henry’s law
D. None of these

Read More “The fugacity of a gas in a mixture is equal to the product of its mole fraction and its fugacity in the pure state at the total pressure of the mixture”. This is__________________?

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