General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter6: Thermochemisty
Section: Chapter Questions
Problem 6.30QP: Enthalpy a A 100.-g sample of water is placed in an insulated container and allowed to come to room...
Related questions
Question
Answer number 6
Transcribed Image Text:5. Calculate the heat release when 266 grams of white phosphorus P4 burns in air according to the
following equation.
P4 + 502 → P4010
AH = - 3013 kJ
6. Calculate the number of joules released when 75.0 grams of water are cooled from 100.0°C to 27.5°C.
7. Calculate the specific heat of gold if it required 48.0 joules of heat to warm 25.0 grams of
gold from 40.0°C to 55.0°C.
8. A sample of zinc, specific heat of 0.386 J/g°C, released 1,964 joules of heat when it
cooled from 92.5°C to 65.0°c. What was the mass of the zinc sample?
9. What would be the final temperature if 8.94 x 103 joules of heat were added to 454
grams of copper, specific heat 0.386 J/g°C, at 23.0°C?
10. What would be the final temperature if 8.94 x 103 joules of heat were added to 454
grams of copper, specific heat 0.386 J/g°C, at 23.0°C?
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