A gram molecule of a gas at 127°C expands isothermally until its volume is doubled. Find the amount of work done and heat absorbed.

  1. 👍
  2. 👎
  3. 👁
  1. The formula you will use for isothermic expansion is:

    Work(W) = 2.303 RT log(V2/V1)

    Let R = 8.3 J / mole-K (universal gas constant and V2/v1 = 2/1 = 2.

    Converting temperature to Kelvins:
    T = 127°C = 400K

    Work(W) = (2.3)(8.3)(400)log(2)

    W = 2.3 x 10^3 J

    To find the heat absorbed:

    2.3 x 10^3 J/4.2 = 548 cal.

    1. 👍
    2. 👎
  2. One gram molecule of an ideal gas at 127°C expands isothermally until volume is doubled ,find the amount of work done given log=0.3010 R=8.31×10erg mol-¹°c

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics

    Suppose 3 mols of neon (an ideal monatomic gas) at STP are compressed slowly and isothermally to 0.19 the original volume. The gas is then allowed to expand quickly and adiabatically back to its original volume. Find the highest

  2. homework college chem.

    a sample of gas occupies a volume at 73. 1 mL. As it expands, it does 135.0 J of work on its surroundings at a constant pressure of 783 torr. what is the final volume of gas?

  3. chemistry!

    An ideal gas has a volume of 3.0 L. If the number of moles of gas and the temperature are doubled, while the pressure remains constant, what is the new volume?

  4. gas laws

    A balloon contains 10.0g of neon gas. With T kept constant, 10.0g of argon gas is added, and the volume of the balloon expands by less than 2 times. Why?

  1. Chemistry

    If the pressure on a 1.04 L sample of gas is doubled at the constant temperature, what will be the new volume of the gas?

  2. Chemistry

    How will the volume of a fixed sample of gas change if its pressure is doubled and the Kelvin temperature is doubled? a)the change cannot be determined without more specific information b)it will decrease by a factor of 2 c)it

  3. Physics

    1000cm3(cude) of air at 20C and 101.35kpa is heated at constant pressure until its volume doubles. (A) use the ideal gas equation to calculate the final temprature of the gas? (B) calculate the work done by the gas as it expands.

  4. Chemistry

    A quantity of N2 occupies a volume of 1 L at 290 K and 1.5 atm. The gas expands to a volume of 2.7 L as the result of a change in both temperature and pressure. Find the density of the gas at these new conditions (in grams per

  1. Physics

    A sample of a monatomic ideal gas is originally at 20 °C. Calculate its final temperature of the gas if the pressure is doubled and volume is reduced to one-fourth its initial value.

  2. physics

    an ideal gas occupies a volume of 22.4litres at stp while absorbing 2.53KJ of heat from the surrounding the gas expands isobarically to 32.4 litres. What is the change in internal energy

  3. physics

    1. Calculate the work done on the system when 1.00 mol of gas held behind a piston expands irreversibly from volume of 1.00dm cube to a volume 10.00dm cube against an external pressure of 1.00 bar. 2. A perfect gas expand

  4. Physics

    An ideal monatomic gas expands isothermally from 0.590 m3 to 1.25 m3 at a constant temperature of 670 K. If the initial pressure is 8.00 104 Pa. (a) Find the work done on the gas. Answer is in J (b) Find the thermal energy

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