ANACHEM Flashcards
An ideal gas will only be considered in the
following operating parameters:
a. High Temperature, High Pressure
b. High Temperature, Low Pressure
c. Low Temperature, High Pressure
d. Low Temperature, Low Pressure
b. High Temperature, Low Pressure
Which of the following is false regarding absolute
zero?
a. All molecules will stop moving
b. Absolute zero can be achieved
c. Temperature is 0K
d. Temperature is 0R
b. Absolute zero can be achieved
For a real gas, what causes the deviation from the ideal pressure at a molecular level?
a. Energy is lost for each collision against
the sides of the container
b. Energy is lost due to the collision of
molecules with one another
c. Intermolecular forces of attraction of the
molecules with one another
d. Molecules randomly hit the sides of the
wall with less force than usual
c. Intermolecular forces of attraction of the
molecules with one another
When gas molecules collide, they experience collision.
a. Perfectly elastic
b. Imperfect elastic
c. Perfectly inelastic
d. Imperfect inelastic
a. Perfectly elastic
Which of the following is false with KMT?
a. Gas molecules move in random motion
b. Due to collision of gas molecules with each other, some kinetic energy is lost
c. The temperature of the whole system does not change with time
d. The size of the molecules is negligible
b. Due to collision of gas molecules with each other, some kinetic energy is lost
This is the pressure exerted by the gas molecules that are in equilibrium with the liquid.
a. Partial pressure
b. Atmospheric pressure
c. Total pressure
d. Vapor pressure
d. Vapor pressure
The internal energy of an ideal gas depends on:
a. Volume
b. Absolute temperature
c. Pressure
d. Number of moles
b. Absolute temperature
The state of an ideal gas is changed in a closed path 1→2→3→4→1. Which of the following is true about the work done on the gas?
a. W12>0, W23=0, W34<0, W41=0
b. W12<0, W23=0, W34=0, W41>0
c. W12=0, W23>0, W34=0, W41<0
d. W12=0, W23<0, W34=0, W41>0
d. W12=0, W23<0, W34=0, W41>0
Which of the following is a characteristic of an adiabatic process?
a. ΔU=0
b. W=0
c. Q=0
d. ΔV=0
c. Q=0
A sample of an ideal gas has an internal energy of U and is then compressed to ½ of its original volume while the temperature stays the same.
What is the new internal energy of the ideal gas in terms of U?
a. U
b. U/2
c. U/4
d. 2U
a. U
Which of the following is not conserved in any process?
a. Mass
b. Energy
c. Momentum
d. Entropy
d. Entropy
Increasing the temperature of the cold reservoir the Carnot efficiency.
a. Increases
b. Decreases
c. Does not change
d. NOTA
b. Decreases
An isentropic process is:
a. Isothermal and adiabatic
b. Reversible and isothermal
c. Reversible and adiabatic
d. Reversible and isochoric
c. Reversible and adiabatic
If the entropy of a system decreases, the entropy of its surroundings
a. Must always increase
b. Must always decrease
c. May increase or decrease
d. Not enough information to answer the
question
a. Must always increase
The amount of heat absorbed when CO2 gas reacts with a solid CaO to form solid CaCO3 is measured in a bomb calorimeter. The data obtained give a direct measure of:
a. ΔU
b. VΔP
c. ΔH
d. CP
a. ΔU
Heat required to raise the temperature of 1lbm of water by 1˚F.
a. Calorie
b. BTU
c. Specific heat
d. Heat capacity
b. BTU
Which of the following statements is/are true?
- Criterion of Equilibrium at constant temperature and pressure is dG = 0
- For a reversible process: dS = dQ/dT
Both True
The general statement of the Third Law of is attributed to:
a. Nikolaus Otto
b. Jacobus Clapeyron
c. William Clausius
d. Walther Nernst
d. Walther Nernst
