chemistry

posted by .

The greatest pressure of the following is that exerted by:
(a) a column of Hg 75.0 cm high (d=13.6 g/cm^3)
(b) 10.0 g H2 gas at STP
(c) a column of air 10 miles high; or
(d) a column of CCl4 60.0 cm high (d=1.59 g/cm^3)
The answer is b. I know that pressure=force/area and pressure can be atm or torr or bar. (c) is 1013 mb. Not sure the reasoning process here with the rest and how to compare with each other. thank you.

  • chemistry -

    a) is 75/78 = <1 atm
    b) If the H2 gas is at STP then P MUST be 1 atm.
    c) An air column to infinity is 1 atm so 10 miles high will be <1atm. (1013 mb is 0.99 atm)
    d)Here is a link to calculate P of CCl4 column. It is < 1 atm.
    (Broken Link Removed) b must the right answer.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    Reaction 1: I2(aq)Cu^+2(aq) Ag^+(aq)Br2(aq) Column 1---Column 2---Column 3---Column 4---Column 5 I-(aq)---X---X---T---T Cu(s)---T---X---T---T Ag(s)---X---X---X---T Br-(aq)---X---X---X---X Reaction of metals and solution of ions Reaction …
  2. chemistry

    if a certain pressure supports a 256 column of mecury, how high a column of water would it support?
  3. chemistry

    If a cetain pressure supports a 256 mm high column of mercury, how high a column of water will it support?
  4. Physics

    Water has a density of 1000kg/m^3. The depth of a swimming pool at the deep end is about 4m. A)What is the volume of a column of water 4m deep and 1m^3 in cross-sectional area?
  5. Chemistry

    A column of mercury in a barometer is 767.3 mm Hg high. Note, that in order for the pressures to be equal, density and height of a column are inversely proportional, therefore, (den1)(h1)=(den2)(h2). The density of mercury is 13.6 …
  6. Ed. Tech

    After creating a column heading and/or typing text within a column, what must you do to move text to the next column?
  7. Tech

    4. after creating a column heading and or typing text within a column what must you do to move text to the next column?
  8. Chemistry

    One atmosphere of pressure will push a column of mercury to a height of 760 mm when the closs sectional area of the column is 1.00 cm.what would be the height of the column of mercury supported by the atmosphere if its cross sectional …
  9. Ed Tech

    4. After creating a column heading and/or typing text within a column, what must you do to move text to the next column?
  10. educational technology

    4. After creating a column heading and/or typing text within a column, what must you do to move text to the next column?

More Similar Questions