ESAS THERMODYNAMICS (Part 1/5)

Which of the following is the Ideal Gas Law?

• V/T = k

• V = k (1/P)

• (P1/T1) = (P2/T2)

• PV = nRT

During adiabatic, internally revesivle process, what is true about the change in entropy?

• it is temperature dependent

• it is always greater than zero

• it is always zero

• it is always less than zero

What is the difference between adiabatic process and isentropic process?

• Adiabatic: heat transfer is not equal to zero

  Isentropic: heat transfer is zero

• Both: heat transfer = 0

  Isentropic : reversible

• Both: heat transfer is not equal to zero

  Isentropic: irreversible

• Adiabatic: heat transfer = 0

  Isentropic: heat transfer not equal to zero

Water boils when:

• its saturated vapor pressure = the atmospheric pressure

• its vapor pressure equals 76 cm Hg

• its temperature reaches 212 C

• its vapor pressure = 1 g/cm²

isothermal process is a constant __________________ process

• pressure

• temperature

• volume

• heat

Which of the following is the standard temperature and pressure (STP)?

• 0 deg C, 1 atm

• 32 deg F, 0 pressure

• 0 deg K, 1 atm

• 0 deg F, 0 pressure

For a heat engine operating between two temperatures (T2 > T1), what is the maximum efficiency attainable?

• 1 - (T1/T2)

• 1 - (T2/T1)

• T1 - T2

• 1 - (T12/T2)

What is the value of work done for a closed, reversible, isometric system?

• zero

• positive

• negative

• + / -

It is impossible to transfer heat from a hot reservoir to a cold reservoir without the use of a heat engine. This statement follows:

• 0th law of thermodynamics

• 1st law of thermodynamics

• 2nd law of thermodynamics

• 3rd law of thermodynamics

The 1st law of thermodynamics is based on the following principles

• conservation of mass

• conservation of energy

• action and reaction

• Entropy - Temperature relationship