Chemistry

posted by .

Which of the following gases would you keep in an outdoor storage tank in winter?
Explain why.
methane(CH4), Propane(C3H8), or butane(C4H10)

  • Chemistry -

    There is no reason why you can't keep any of these out of doors in the winter. The two assumptions you will have to make are what is the lowest winter temperature and why are you storing the gas? From this you can decide what you are storing them in.

    Data
    Methane has a boiling point of −161 °C at a pressure of one atmosphere
    Propane has a boiling point of −42 °C
    Butane has a boiling point of −0.5 °C at a pressure of one atmosphere

    So methane will remain a gas no matter where you are on Earth.

    Propane will also remain a gas apart from some very cold places on the Earth, such as Antartica and Siberia. If the temperature drops below the boiling point there are two main problems. There will no longer be a supply of gas for, say, heating. There is an additional problem in that the storage container that may have been pressurised, will suddenly come under a vacuum when the gas condenses to the liquid. The atmospheric pressure may crush the container or cause it to crack. This may not be obvious until the gas warms up, repressurises the container and it leaks.

    Butane will suffer the same problems as propane when the temperature drops below -0.5C.

    One way around the problem of the gas condensing and generating a vacuum is to pressurise the storage vessel so that the gas is stored as a liquid, i.e. it is already a liquid.

    Hope this is useful

  • Chemistry -

    Thank you. That helped a lot.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    Calculate the partial pressure (in atm) of propane in a mixture that contains equal weights of propane (C3H8) and butane (C4H10) at 18°C and 746 mmHg
  2. chemistry

    Calculate the partial pressure of propane in a mixture that contains equal numbers of of moles of propane (C3H8) and butane (C4H10) at 20 degrees C and 844 mmHg. (R=0.082 L-atm/K mol)
  3. chemistry

    A closed container has a mixture of methane, CH4, ethane C2H6, and propane C3H8. If 12.5 g of methane, 36.0 g of ethane, and 14.0 g of propane have a total pressure of 890. mm Hg, what is the partial pressure of each of the gases in …
  4. chemistry

    Calculate the partial pressure of propane in a mixture that contains equal numbers of moles of propane (C3H8) and butane (C4H10) at 20 °C and 505 mmHg. (R=0.082 L-atm/K mol)
  5. AP chemistry

    Liquid butane, C4H10, is stored in cylinders, to be used as a fuel. The normal boiling point of butane is listed as -0.5 C. (a) suppose the tank is standing in the sun and reaches a temperature of 35 C. Would you expect the pressure …
  6. chemistry

    Calculate the partial pressure of propane in a mixture that contains equal numbers of moles of propane (C3H8) and butane (C4H10) at 20 °C and 616 mmHg. (R=0.082 L-atm/K mol)
  7. chemistry

    Calculate the partial pressure of propane in a mixture that contains equal numbers of moles of propane (C3H8) and butane (C4H10) at 20 °C and 616 mmHg. (R=0.082 L-atm/K mol)
  8. chemistry

    Calculate the partial pressure of propane in a mixture that contains equal numbers of moles of propane (C3H8) and butane (C4H10) at 20 °C and 616 mmHg. (R=0.082 L-atm/K mol)
  9. chemistry

    Propane (C3H8) which is used as fuel in BBQ tanks often contains some butane(C4H10). A sample of a fuel mixture known to contain both propane and butane occupies a certain volume at a total pressure of 30 mmHg. The sample is then burned …
  10. chemistry

    Three gases (8.00 g of methane, CH4, 18.0 g of ethane, C2H6, and an unknown amount of propane, C3H8) were added to the same 10.0-L container. At 23.0 ∘C, the total pressure in the container is 5.20 atm . Calculate the partial pressure …

More Similar Questions