Enter your answer in the provided box. A gas expands and does P-V work on the surroundings equal to 259 J. At the same time, it absorbs 241 J of heat from the surro 18 Answer 1: 18 Question 2 Be sure to answer all parts. A gas expands from 265 mL to 987 mL at a constant temperature. Calculate the work done (in joules) by the gas if it expands (a) against a vacuum. (Answer in 1 Significant Figure) W = 0 Answer 1: J (b) against a constant pressure of 4.00 atm. (Answer in 3 Significant Figures) W = -2.9 0 Answer 2: -2.9 J J

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
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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A gas expands and does P-V work on the surroundings equal to 259 J. At the same time, it absorbs 241 J of heat from the surro
18
Answer 1:
18
Question 2
Be sure to answer all parts.
A gas expands from 265 mL to 987 mL at a constant temperature. Calculate the work done (in joules) by the gas if it expands
(a) against a vacuum. (Answer in 1 Significant Figure)
W = 0
(b) against a constant pressure of 4.00 atm. (Answer in 3 Significant Figures)
W = -2.9
Answer 1:
0
Answer 2:
-2.9
Question 3
-11818.5
J
Enter your answer in the provided box.
Calculate the heat (in kJ) associated with 486 g of white phosphorus burning in air according to the equation
P4(s) +502(g) → P4010(s) AH--3013 kJ/mol
kJ ((Answer in Six Significant Figures)
Answer 1:
-11818.5
J
Transcribed Image Text:Enter your answer in the provided box. A gas expands and does P-V work on the surroundings equal to 259 J. At the same time, it absorbs 241 J of heat from the surro 18 Answer 1: 18 Question 2 Be sure to answer all parts. A gas expands from 265 mL to 987 mL at a constant temperature. Calculate the work done (in joules) by the gas if it expands (a) against a vacuum. (Answer in 1 Significant Figure) W = 0 (b) against a constant pressure of 4.00 atm. (Answer in 3 Significant Figures) W = -2.9 Answer 1: 0 Answer 2: -2.9 Question 3 -11818.5 J Enter your answer in the provided box. Calculate the heat (in kJ) associated with 486 g of white phosphorus burning in air according to the equation P4(s) +502(g) → P4010(s) AH--3013 kJ/mol kJ ((Answer in Six Significant Figures) Answer 1: -11818.5 J
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