chemistry

can you check my answers(has star next to it)
1. Absolute zero is when T = 0 K.

A. true*
B. false

2. Molecular motion is neglibible at absolute zero.

A. true*
B. false

3. Absolute zero is the temperature when P = 0.

A. true*
B. false

4. Absolute zero is when T = 0C

A. true
B. false*

5. When pressure is plotted on the x-axis and Celsius temperature is on the y-axis, the y-intercept is absolute zero .

A. true*
B. false

asked by bubble
  1. I would think about the answers to 3 and 5. The question doesn't say that the gas is an ideal gas or not so I'm a little confused about some of the implications because of that. I think your answers to questions 1, 2, and 4 are fine.
    For 3, although the pressure of an ideal gas is zero at absolute zero, that is NOT the definition of absolute zero. Perhaps this is a nit-picky point. The question appears to be defining absolute zero as the point when P = 0.
    For #5, if we plot T vs P for an ideal gas, won't the extrapolated line go through zero?
    Perhaps this is not an ideal gas. For a real gas, the y-intercept might be the VOLUME of the gas at absolute zero,
    Check my thinking.

    posted by DrBob222
  2. Scratch that last sentence. Volume isn't even in the P vs T question.

    posted by DrBob222
  3. state charle s law

    posted by pardeep

Respond to this Question

First Name

Your Answer

Similar Questions

  1. Science 3

    If a star were moved 10X farther away, its absolute magnitude would drop five magnitudes. True or False TRUE
  2. Science

    Hi. Could you Please check my answers? I just want to make sure they are correct. Thanks for the help in advance :). True or false: All matter on Earth contains energy- true? True or false: the molecules in frozen water are in
  3. 7th grade health true or false

    11. Disagreements are a normal part of life. (1 point) True False 12. Talking to a trustworthy adult is the best way to stop sexual abuse and get help. (1 point) True False 13. Some conflicts are made worse by peer negotiation. (1
  4. Physical Ed

    11. Disagreements are a normal part of life. (1 point) True False 12. Talking to a trustworthy adult is the best way to stop sexual abuse and get help. (1 point) True False 13. Some conflicts are made worse by peer negotiation. (1
  5. chemistry

    In the chemical plating experiment zinc powder is dissolved in a hot NaOH solution to form sodium zincate according to the following reacton: Zn(s) + 2NaOH(aq) Na2ZnO2(aq) + H2(g) Answer true or false for each of the following
  6. science. mrs.sue please help

    14. the sun's layer is called the photosphere . ( 1point) A. true b. false 15. meteoroids can form when comets break apart , creating dust clouds . ( 1point ) A. true b. false 16. a star is born whenever a nebula expands . (
  7. Fitness (Check answers)

    6) Gang member often have weapons and are involved in violence. TRUE OR FALSE ~ (my answer is TRUE) 7) Being disruptive in class and getting angry easily could be sign of abuse. TRUE OR FALSE ~ (my answer is FALSE) 8) People with
  8. Math

    True or False: 1. if [w-7]<-3, then w-7>3 (NOTE: In this case "[ ]" indicate absolute value.) I did: 3+7<w-7<-3+7 10<w<4 So, I think it's False 2. If -4 < -2t + 6 < 10, then 2>t+6>-5 I worked the
  9. Chemistry: Answer check please!

    1. Reactions follow the law of conservation of mass. a.) True b.) False Answer: True 2. Reactants are the materials used in a chemical reaction. a.) True b.) False Answer: True 3. In a chemical equation, the mass on the left of
  10. Fitness (Check answers)

    1) Sitting in class wearing ear buds during a lecture is effective listening. TRUE OR FALSE ~ (my answer is FALSE) 2) Defense mechanisms should be used as often as possible to deal with uncomfortable emotions. TRUE OR FALSE ~ (my

More Similar Questions