When a solid is placed in a container and heat is applied, a phase change occurs. Watch the video and sort the parts of the curve based on whether the average energy of the molecules is changing, or is constant. View Available Hint(s)
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The solid is heated to reach the
melting point
The liquid is heated at the boiling point
The liquid is heated to reach the
boiling point
The solid is heated at the melting
point
Average molecule energy change
Average molecule energy constant
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how to make a simple air condition

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.