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A 19.2-g quantity of dry ice (solid carbon (dioxide) is
Chapter 6, Problem 107P(choose chapter or problem)
A 19.2-g quantity of dry ice (solid carbon dioxide) is allowed to sublime (evaporate) in an apparatus like the one shown in Figure 6.5. Calculate the expansion work done against a constant external pressure of 0.995 atm and at a constant temperature of \(22^{\circ} \mathrm{C}\). Assume that the initial volume of dry ice is negligible and that \(\mathrm{CO}_{2}\) behaves like an ideal gas.
Questions & Answers
QUESTION:
A 19.2-g quantity of dry ice (solid carbon dioxide) is allowed to sublime (evaporate) in an apparatus like the one shown in Figure 6.5. Calculate the expansion work done against a constant external pressure of 0.995 atm and at a constant temperature of \(22^{\circ} \mathrm{C}\). Assume that the initial volume of dry ice is negligible and that \(\mathrm{CO}_{2}\) behaves like an ideal gas.
ANSWER:Step 1 of 2
Here we have to calculate the expansion of work done against a constant external pressure 0.995 atm and at a constant temperature of 22°C.
Given:
Mass of dry ice (
Molecular mass of
Number of moles of
Pressure = 0.995 atm
Temperature = 22 °C + 273 = 295 K
It is known that work done can be calculated as,