Chemsitry

Which of the following is NOT true about the thermodynamic standard state?


A. A solid is in its standard state when the atmospheric pressure is 1.00 atm and the temperature is 25C.
B. An aqueous solution is in its standard state at a concentration of 1.00 M.
C. A gas is in its standard state when its pressure is 1.00 atm and its temperature is 25C.
D. A pure liquid is in its standard state at 25C and a vapor pressure of 1.00 atm.
E. All of these are true.

asked by Anonymous
  1. Look up the standard state definition of a liquid (answer D) and see if the standard state of a liquid has a vapor pressure of 1.00 atm.

    posted by DrBob222
  2. ive looked in my book and cant seem to find it

    posted by Anonymous
  3. i got it thanks

    posted by Anonymous
  4. Look under Thermochemical standard state in the index. Or try Thermodynamic standard state.
    My FRESHMAN chemistry text has the following listed under thermochemical standard states.
    From Whitten, Davis, Peck, General Chemistry, 5th edition, page 554.
    "Keep in mind the following conventions for thermochemical standard states.
    1. For a pure substance in the liquid or solid phase, the standard state is the pure liquid or solid.

    2. For a gas, the standard state is the gas at a pressure of one atmosphere; in a mixture of gases, its partial pressure must be one atmosphere.

    3. For a substance in solution, the standard state refers to one-molar concentration.?

    At an earlier part of the paragraph, it lists the standard T for the standard state as 25 C.
    I hope this helps.

    posted by DrBob222
  5. Did you retry the 548 kJ/mol again. I'd like to know if that was the trouble.

    posted by DrBob222
  6. -548 kJ/mol

    posted by many bunnies in UCI
  7. D. I just did it.

    posted by Anonymous

Respond to this Question

First Name

Your Answer

Similar Questions

  1. Chemistry

    Which of the following is NOT true about the thermodynamic standard state? A. A solid is in its standard state when the atmospheric pressure is 1.00 atm and the temperature is 25C. B. A pure liquid is in its standard state at 25C
  2. chem

    Which of the following is NOT true about the thermodynamic standard state? A. A gas is in its standard state when its pressure is 1.00 atm and its temperature is 25C. B. An aqueous solution is in its standard state at a
  3. Chemistry

    Which of the following is NOT true about the thermodynamic standard state? A. A pure liquid is in its standard state at 25C and a vapor pressure of 1.00 atm. B. A gas is in its standard state when its pressure is 1.00 atm and its
  4. chemistry

    Which of the following is NOT true about the thermodynamic standard state? A. A gas is in its standard state when its pressure is 1.00 atm and its temperature is 25C . B. An aqueous solution is in its standard state at a
  5. chemistry

    Which of the following is NOT true about the thermodynamic standard state? A. A pure liquid is in its standard state at 25C and a vapor pressure of 1.00 atm. B. An aqueous solution is in its standard state at a concentration of
  6. Chemistry

    What can be said about a substance with a triple point above 1atm 1) The liquid state of the substance cannot exist. 2) The gaseous state at 1 atm pressure cannot be condensed to the solid at the triple point temperature. 3) The
  7. chemistry

    Which substances in each of the following pairs would have the greater entropy? Explain. (a) at 75°C and 1 atm: 1 mol H2O(l) or 1 mol H2O(g) (b) at 5°C and 1 atm: 50.0 g Fe(s) or 0.80 mol Fe(s) (c) 1 mol Br2(l,1 atm, 8°C) or 1
  8. physics

    Consider 3 liters of an ideal (monatomic) gas at a pressure of 34 atm and a temperature of 356K. Call this state of the system A. Using the ideal gas law, calculate the number of moles of gas present in the system. 3.49 The
  9. Phase

    http://en.wikipedia.org/wiki/Melting_point Question: A solid substance has a vapor pressure of 100 mmHg at the melting point (100C). Assuming an atmospheric pressure of 760 mmHg, describe the behavior of this solid as the
  10. Math

    A small country consists of seven states; there are 189 seats in the legislature that need to be apportioned among the seven states; and the population of each state is shown, State A: 1283 State B: 2374 State C: 2725 State D:

More Similar Questions