6. The work done to compress a gas is 74 J. As a result, 26 J of heat is given off to the surroundings. Calculate the change in energy of the gas. 7. A 0.1375-g sample of solid magnesium is burned in a constant-volume bomb calorimeter that has a heat capacity of 3024 J/ °C. The temperature increases by 1.126 °C. Calculate the heat given off by the burning Mg, in kJ/g and in kJ/mol.
6. The work done to compress a gas is 74 J. As a result, 26 J of heat is given off to the surroundings. Calculate the change in energy of the gas. 7. A 0.1375-g sample of solid magnesium is burned in a constant-volume bomb calorimeter that has a heat capacity of 3024 J/ °C. The temperature increases by 1.126 °C. Calculate the heat given off by the burning Mg, in kJ/g and in kJ/mol.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter6: Thermochemistry
Section: Chapter Questions
Problem 40E: A piston performs work of 210. L atm on the surroundings, while the cylinder in which it is placed...
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Transcribed Image Text:6. The work done to compress a gas is 74 J. As a result, 26 J of heat is
given off to the surroundings. Calculate the change in energy of the gas.
7. A 0.1375-g sample of solid magnesium is burned in a constant-volume
bomb calorimeter that has a heat capacity of 3024 J/ °C. The temperature
increases by 1.126 °C. Calculate the heat given off by the burning Mg, in
kJ/g and in kJ/mol.
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