Ask questions and get helpful responses.
Ask a New Question
  1. Questions

chem.

A sample of argon at 300. °C and 50.0 atm pressure is cooled in the same container to a temperature of 0. °C. What is the new pressure?
105 atm
45.5 atm
54.9 atm
23.8 atm
42.7 atm

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
Anonymous

  1. First use school boy logic to dismiss any silly answers. If the temperature has dropped then the new pressure must be less than 50.0 atm. Thus we can dismiss 105 atm, and 54.9 atm.

    Use P1/T1=P2/T2

    or by inspection the temperature has dropped by approximately a factor of 2 (from 573 K to 273 K) so the pressure is approximately half the starting pressure of 50 atm. Thus the answer must 23.8 atm.
    [and no calculator needed!]

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    Dr Russ

  2. 23.8 atm

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    Christine King

  4. 23.8 atm

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    Mariah

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    A 255mL gas sample contains argon and nitrogen at a temperature of 65 degrees celsius. The total pressure of the sample is 725mmHg and the partial pressure of argon is 231 mmHg. what mass of nitrogen is present in the sample?

  2. chemistry

    A 1 L flask is filled with 1.40 g of argon at 25 degrees celcius. A sample of ethane vapor is added to the same flask until the total pressure is 1.00 atm. Whatis the total pressure of Argon in the flask ? What is the partial

  3. chemistry

    In which one of the following processes is ΔH = ΔE? a. 2HI(g) → H2(g) + I2(g) at atmospheric pressure. b. Two moles of ammonia gas are cooled from 325°C to 300°C at 1.2 atm. c. H2O(l) → H2O(g) at 100°C at atmospheric

  4. Chem-organic, bio, intro

    A gas mixture contains oxygen and argon at partial pressures of 0.60 atm and 425 mmhg. If nitrogen gas added to the sample increases the total pressure to 1250 torr, what is the partial pressure in Torr of the Nitrogen added?

  1. Chemistry

    A sample of 62.3 CM^3 of argon gas at 18°c was contained at a pressure of 155 kPa in a j-shaped tube with Mercury. Later the temperature changed. When the Mercury level was adjusted to give the same pressure of argon, the gas

  2. Chemistry

    The pressure of a sample of argon gas was increased from 3.71 atm to 8.55 atm at constant temperature. If the final volume of the argon sample was 16.1 L, what was the initial volume of the argon sample? Assume ideal behavior.

  3. Chemistry

    A sample of argon gas has a volume of 735 mL at a pressure of 1.20 atm and a temp of 112 degrees Celsius. What is the final volume of the gas, in milliliters, when the pressure and temp of the gas is changed to A.) 658 mmHg and

  4. Chemistry

    Calculate the partial pressures and total pressure (in atm) exerted by 0.838 mol of methane, 0.184 mol of ethane and 0.755 mol of neon contained in a 4.00 L container at 27 C. PV=nRT for methane (4.00L) X = (0.838 mol)(0.08206

  1. chemistry homework help!!

    many gases are shipped in high pressure containers. consider a steel tank whose volume is 42.0L and which contains O2 gas at a pressure of 165atm at 23 degrees celsius. 1.) what mass of O2 does the tank contain? 2.) what volume

  2. chemistry

    A saturated solution was formed when 4.48×10−2 L of argon, at a pressure of 1.0 atm and temperature of 25 C, was dissolved in 1.0 L of water. Calculate the Henry's law constant for argon in mol/atm. I got an answer of

  3. Chem

    The solubility of argon in water at 25°C is 0.0150 mol/L. What is the Henry's Law constant for argon if the partial pressure of argon in air is 0.00934 atm?

  4. Chemistry

    the solubility of argon in water at 25 degrees celcius is 0.0150M. what is the henry's law constant of Ar if the partial pressure of argon is 0.00934 atm. A)0.000140 M/atm B)0.623 M/ atm C)1.61 M/atm D) 4.10 M/atm K=Pgas/Cgas Post

Still need help? You can ask a new question.