Chemistry

posted by .

Substance A has a melting point of -10 degree celcius and a boiling point of 57 degree celcius. Sunstance B has a melting point of -67 degree celius and a boiling point of 15 degree celius. Room temperature is 20 degree celcius.
(A) What is the physical state of substance A at room temperature? At 0 degree celcius? At 100 degree celcius?

  • Chemistry -

    First, you need to note the correct spelling of celsius.

    A mp -10 C, bp 57 C.
    B mp -67 C, bp 15 C.

    A is a solid below -10 C, melts at -10 and is a liquid between -10 and 57 C, boils at 57 C and becomes a vapor at 57 and above.

    Same analysis for B.
    I think you can figure it out from that information.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    How much heat is required to vaporize 1.00 L of CCl4 at its normal boiling point?
  2. chemistry

    -182 degree c, -68 degree c, 943 degree c, 115 degree c, 0 degree c, which is the melting point of an ionic solid?
  3. chemistry

    Say you have two substances, A and B. A has a melting point of 300 degrees Celcius, while B has a melting point of 200 degrees Celcius. If you took a mixed melting point where the ratio of A is higher than B, what would the melting …
  4. Physics

    A faulty celcius thermometer read 0.7 degree celcius at the melting point of pure ice and 99.5 at the boiling point of water at normal pressure. Calculate the correct temperature when it reads 30 degree celcius. At what temperature …
  5. Science chemistry

    Which compound has the melting point of -23 degree Celsius and boiling point of 77 degree Celsius ?
  6. Chemistry

    The boiling point of alcohol is 78.3 degrees Celcius at 760 mm atm pressure. Would the boiling point be higher or lower than 78.3 degree Celcius at hugher altirudes?
  7. Science

    A substance has melting point of 0 Celius and a boiling point of 100 Celius. The substance is most likely * water * hydrogen * gold * table salt
  8. Chemistry

    1) how many joules are required for each of the following?
  9. Physics

    The ice point of a faulty mercury in glass thermometer isX degree celcius while its steam point is 85 degree celcius. If the thermometer reads 50 degree celcius when the true temperature is 40 degree celcius, calculate the value of …
  10. science

    which substance has a melting point of -219 degree celsius and boiling point of -183 celsius at room temperature 30 degree celsius

More Similar Questions