Answer:
Explanation:
Given mass of piston 
no. of moles =n
Given Pressure remains same
Temperature changes from 
Work done
W=
also 


Which questions? i need to see the actual question, did you like upload them to your profile now?
That would be
0 degrees Celsius aka the melting point of water.... If you look at the diagram I attached you notice that at 0 degrees Celsius it is flat, this is because much heat is needed at this point for water to rise to 1 degree... It is the same for the boiling point (100)<span />
There are usually multiple methods for organizing items and information in a scientific investigation.
The answer is A) the sand turns to liquid