Post a New Question

physics

posted by .

A cylinder with a movable piston holds 2.75 mol of argon gas at a constant
temperature of 295 K. As the gas is compressed isothermally, its pressure increases from
101 kPa to 121 kPa. Find (a) the final volume of the gas, (b) the work done by the gas,
and (c) the heat added to the gas.

  • physics -

    (a) PV = constant for an isothermal gas
    (b) Work done = -Integral of P dV
    = -integral of PoVo*dV/V
    = PoVo*dP/P
    = PoVo ln(P2/P1)

    (c) Qin = Wout + deltaU
    = Wout

    The internal energy does not change for an ideal isothermal gas.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    The pressure of a gas in a cylinder with a movable piston is increased from 45 kPa to 90 kPa. If the temperature is held constant, and the initial volume of the gas in the cylinder is 0.5 m^3, what is the final volume of the gas?
  2. Physics

    The pressure of a gas in a cylinder with a movable piston is increased from 45 kPa to 90 kPa. If the temperature is held constant, and the initial volume of the gas in the cylinder is 0.5 m3, what is the final volume of the gas?
  3. Physics

    The pressure of a gas in a cylinder with a movable piston is increased from 45 kPa to 90 kPa. If the temperature is held constant, and the initial volume of the gas in the cylinder is 0.5 m3, what is the final volume of the gas?
  4. PHYSICS

    A cylinder with a moveable piston holds 2.40 mol of argon at a constant temperature of 295 K. As the gas is compressed isothermally, its pressure increases from 101 kPa to 141 kPa. What is the final volume of the gas?
  5. chemistry

    i keep trying to do these problems and i don't understand them. please help me!! 1. Gas stored in a tank at 273 K has a pressure of 388 kPa. The save limit for the pressure is 825 kPa. At what temperature will the gas reach this pressure?
  6. physics

    A cylinder with a moveable piston holds 3.00 of argon at a constant temperature of 300 . As the gas is compressed isothermally, its pressure increases from 101 to 125 .Find the final volume of the gas.Find the work done by the gas.Find …
  7. thermodynamic

    Energy is added to a piston-cylinder arrangement. The piston is withdrawn in such a way that the temperature remains constant. The initial pressure and volume are 200 KPa and 2m^3, respectively. If the final pressure is 100 KPa, determine …
  8. Physics

    A cylinder with a moveable piston holds 2.60 mol of argon at a constant temperature of 295 K. As the gas is compressed isothermally, its pressure increases from 101 kPa to 149 kPa. (a) Find the final volume of the gas. Answer in m3 …
  9. Thermodynamics

    3. A gas is confined in a 0.47-m-diameter cylinder by a piston, on which rests a weight. The mass of the piston and weight together is 150 kg. The atmospheric pressure is 101 kPa. (a)What is the pressure of the gas in kPa?
  10. Physics

    A gas cylinder of volume 26 liters contains an ideal gas at temperature 27 degrees C and pressure 1920 kPa. Some of the gas leaks until the pressure falls to 1500 kPa. How many moles of gas leaked, assuming that the temperature remains …

More Similar Questions

Post a New Question