In the troposphere, temperature decreases with height at an average rate of 6.5°c/km. if temperature at 2.5 km altitude is 7.0°c, what is the temperature at 5.5 km altitude?

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