Question

Which of the following statements does not apply to the definition of an ideal gas?

Group of answer choices

a. Intermolecular interactions are negligible.

b. The Gibbs free energy only depends upon the temperature.

c. The enthalpy only depends upon the temperature.

d. The internal energy only depends upon the temperature.

e. None. The previous answers are all correct.

Consider a solid substance. Which of the following expressions is wrong?

Group of answer choices

a. Internal energy increases when the system expands adiabatically.

b. Internal energy increases when the system is compressed adiabatically.

c. Entropy increases when the system expands.

d. Entropy will tend to zero at temperatures approaching 0K.

e. None. They are all correct.

Which of the following observables can never be negative?

Group of answer choices

a. A change in Gibbs free energy for a given reaction.

b. A change in entropy for an isolated system.

c. A change in chemical equilibrium.

d. A change in internal energy for an ideal gas.

e. All the listed observables can show both negative and negative values with respect to the indicated conditions.

Which of the following expressions or statements does not apply to an ideal gas?

Group of answer choices

a. PdV = nRdT for a closed system undergoing an isobaric process.

b. Z = 1.

c. dA = 0 for an adiabatic isothermal process.

d. dG = 0 for an adiabatic isothermal process.

e. None, they are all correct.

Under which thermodynamic conditions the enthalpy for a liquid substance remains constant during a reversible process?

Group of answer choices

a. Adiabatic and isobaric.

b. Isochoric and isothermal.

c. Adiabatic and isothermal.

d. Adiabatic and isochoric.

e. We cannot tell because we don’t know any equation of state for the liquid phase.

Answer 1

Answer