Welcome to Westonci.ca, where you can find answers to all your questions from a community of experienced professionals. Ask your questions and receive accurate answers from professionals with extensive experience in various fields on our platform. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.
Sagot :
Answer:
a) Workdone = 0 Joules
b) Workdone = -286.48 Joules
Explanations:The formula for work done in gas expansion is given as:
W = -P(V₂ - V₁)
where W is the workdone, P is the pressure, V₁ is the initial volume of the gas, and V₂ is the final volume of the gas.
Initial volume, V₁ = 264 mL = 264/1000 = 0.264L
Final volume, V₂ = 971 mL = 971/1000 = 0.971L
a) Workdone by the gas if it expands against a vacuum
When a gas expands against a vacuum, the external pressure, P = 0
Therefore, the workdone against a vacuum is:
W = 0(0.971 - 0.264)
W = 0 J
b) Workdone by the gas against a constant pressure of 4.00 atm
W = -P(V₂ - V₁)
W = -4(0.971 - 0.264)
W = -4(0.707)
W = -2.828 L atm
To convert workdone from L atm to Joules, multiply by 101.3
W = -2.828 x 101.3
W = -286.48 J
The workkdone has a negative sign because this is gas expansion, and work is done by the system
Thanks for using our platform. We're always here to provide accurate and up-to-date answers to all your queries. We hope you found this helpful. Feel free to come back anytime for more accurate answers and updated information. Westonci.ca is your trusted source for answers. Visit us again to find more information on diverse topics.
