Question 4 of 10 How is the AHfusion used to calculate the energy released when a mass of
liquid freezes?
A. Grams liquid x mol/g < 1/AHfusion
B. Grams liquid AHfusion
C. Grams liquid x mol/g < AHfusion
D. Grams liquid < 1/AHfusion

Hannah is writing a report on how albedo affects the global climate. she’s proofreading her passage for any factual errors. which sentence must hannah correct before submitting her report? earth receives energy from the sun. this energy drives many of the processes on earth, including its climate. some part of this energy is reflected by earth’s surface. we use the term albedo to describe the reflected energy. albedo of an object is the ratio of the reflected radiation to the total radiation reaching the object. a value of 0 means no energy is absorbed by the object, whereas a value of 1 means that all of the energy is absorbed. in this way, the albedo of an object can influence earth’s atmospheric temperature.

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms