Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change.
when the temperature in a room increases from
25°c to 33°c,
changes from a solid
to a liquid.
in a lab, methane and nitrogen are cooled from
-170°c to -200°c. the methane freezes and the
nitrogen
.
when gold is heated to 2,856°c it changes from a liquid to a
.

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )