Interconversion of states

Multiple Choice

Use the number line for substance K to identify the correct statements for substance K.

• K melts at 2450 ^oC

  and boils at 4800 ^oC

• K boils at 2450 ^oC

  and melts at 4800 ^oC

• K melts at 2450 ^oC

  and freezes at 4800 ^oC

• K condenses at

  2450 ^oC

  and boils at 4800 ^oC

Multiple Choice

What state of matter is Bromine at -7 ^oC?

• liquid

• liquid/gas

• solid

• solid/liquid

Multiple Choice

What is the temperature range at which Fluorine can exist as a solid only?

• -220 ^oC

• -221 ^oC and below

• -220 ^oC and below

• Below -220 ^oC

Multiple Choice

What is the temperature range at which Mercury can exist as a liquid?

• Between -39 to 357 ^oC

• From -39 to 357 ^oC

• -39 and 357 ^oC

• From -38 to 356 ^oC

Multiple Choice

What state of matter is Fluorine at -218 ^oC?

• solid

• liquid

• gas

• solid/liquid

Multiple Choice

At what temperature range is Fluorine a gas only?

• -188 ^oC and above

• -188 ^oC and below

• Above -188 ^oC

• Below -188 ^oC

Multiple Choice

What is the state of matter of Barium at 1699 ^oC?

• solid

• liquid

• gas

• liquid/gas

Multiple Choice

Which substance is a liquid at 25 ^oC?

• Mercury only

• Fluorine, mercury and bromine only

• Bromine only

• Bromine and mercury only

Multiple Choice

Water freezes at 0 ^oC and boils at 100 ^oC. What is its state at 300 ^oC?

• solid

• liquid

• gas

• liquid and gas

Multiple Choice

Which substance is a gas at 25 ^oC?

• Bromine only

• Fluorine, and bromine only

• Fluorine only

• Fluorine and mercury only