Physics

One mole of an ideal gas initially at a temperature of Ti = 7.4°C undergoes an expansion at a constant pressure of 1.00 atm to eight times its original volume.
(a) Calculate the new temperature Tf of the gas.______J

(b) Calculate the work done on the gas during the expansion.________kJ

  1. 👍
  2. 👎
  3. 👁
  1. (a)
    Ti=273+7.4=280.4 K
    Vi/Ti = Vf/Tf
    Vi/280.4 =8 Vi/Tf
    Tf=8•280.4 = 2243.2 K
    b) p•ΔV=νRΔT
    ν =1 mol
    p•ΔV= RΔT
    W = p•ΔV= RΔT=
    = 8.31•(2243.2-280.4)=
    =1.63•10⁴ J =16.3 kJ

    1. 👍
    2. 👎
  2. Waw..Elena answer is so brilliant..
    Thank you so much..
    Hope can know you well

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. chemistry

    If I contain 3 moles of gas in a container with a volume of 60 liters and at temperature of 400 K, what is the pressure inside the container? Ideal Gas Law: PV=nRT I know I'm given the volume, temperature, and numbers of moles of

  2. physics

    An ideal gas is confined to a container with adjustable volume. The pressure and mole number are constant. By what factor will volume change if absolute temperature doubles

  3. chemistry

    Which statement is false? The average kinetic energies of molecules from samples of different “ideal” gases is the same at the same temperature. Molecules of a gas undergo many collisions with each other and the container

  4. science

    The work done by one mole of a monatomic ideal gas (y=5/3) in expanding adiabatically is 825 J. The initial temperature and volume of the gas are 393 K and 0.100 m3. Obtain (a) the final temperature and (b) the final volume of the

  1. physics

    five mole of an ideal gas are kept at a constant temperature of 53 degree celcius while the pressure of the gas is increased from 1 atm to 3 atm calculate the work done by the gas

  2. math

    The inequality 70◦ < x < 80◦ represents the range of the ideal water temperature, in degrees Fahrenheit, for Sammy’s fish. Which statement is true about the situation? A. The ideal water temperature is less than 70 ◦F. B.

  3. chemistry

    Which one of the following statements regarding ideal gas laws is FALSE? Select one: a. An ideal gas has an infinite heat capacity b. The macroscopic ideal gas equation is PV = nRT c. The temperature must always be measured in

  4. Physics

    A 1.6-mole sample of an ideal gas is gently cooled at constant temperature 280 K. It contracts from initial volume 37 L to final volume V2. A total of 1.9 kJ of heat is removed from the gas during the contraction process. What is

  1. chemistry

    One mole of O2(g) undergoes the following change in state. O2(g, 299 K, 4.38 bar) ⟶ O2(g, 252 K, 6.79 bar) What is ΔS for the gas? Assume ideal gas behaviour. The constant pressure molar heat capacity for O2(g) is Cp,m = 29.10

  2. Physics

    The drawing shows an ideal gas confined to a cylinder by a massless piston that is attached to an ideal spring. Outside the cylinder is a vacuum. The cross-sectional area of the piston is A = 2.50 10-3 m2. The initial pressure,

  3. PHYSICS

    Three moles of an ideal gas are compressed from 5.5*10^-2 to 2.5*10^-2 m^3. During the compression, 6.1*10^3J of work is done on the gas, and heat is removed to keep the temperature of the gas constant at all times. Find the

  4. chemistry

    one mole of an ideal momoatomic gas at s.t.p undergoes isochoric heating at 25 degrees C. Calculate, the pressure, the heat, the workdone, du, dH.

You can view more similar questions or ask a new question.