A closed system with an initial pressure of 20 atm decreases in
volume from 15 liters to 3 liters while increasing in temperature
from 300 K to 600K. What is the new pressure of system?
8 atm
2 atm
200 atm
50 atm

What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j