Use the phase diagram above to answer the questions below .( remember that standard pressure is 1.00 atm and it’s used to find normal phase change temperatures.) 1: in which state/phase of matter is this substance at -10 °c and a pressure of 0.50 atm? 2: what phase change occurs as the substance at 0.75 atm is heated from 0°c to 25°c 3: the normal boiling point of a substance is the temperature at standard pressure (1 atm) in which a substance changes from the liquid to the gas/vapor state . what is the normal boiling point of this substance ? 4: the point on the phase diagram where the separation line between liquid and gas ends and the distinction between the liquid phase and gas phase disappears is called the . at this point ,no amount of pressure will cause the substance to condense into a liquid 5: what is the temperature and pressure of the triple point? what phases are in equilibrium at this point ? 6: what phase change occurs as the substance at 0°c has its pressure dropped from 0.50 atm to 0.25 atm?

The phases don't seem to be labelled ...

1: In which state/phase of matter is this substance at -10 °C and a pressure of 0.50 atm?

solid in eq with vapour ?

3: The normal boiling point of a substance is the temperature at standard pressure (1 atm) in which a substance changes from the liquid to the gas/vapor state . What is the normal boiling point of this substance ?

20 or 50 ?

4: The point on the phase diagram where the separation line between liquid and gas ends and the distinction between the liquid phase and gas phase disappears is called the . At this point ,no amount of pressure will cause the substance to condense into a liquid

Triple point ... 3 lines meet

5: What is the temperature and pressure of the triple point?

10, 0.5

What phases are in equilibrium at this point ?

solid liquid gas.

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

the answer is kevlar