Concept explainers
(a)
Interpretation:
The representation of gas when the temperature is increased from 300 K to 450 K at constant pressure needs to be determined.
Concept introduction:
When the temperature of a gas is increased, the speed of the gaseous molecules increases. Due to an increase in the speed of the molecules, the space between them increases, hence, the volume of gas increases.
The ideal gas equation is represented as follows:
Here, P is pressure, V is volume, n is the number of moles, R is Universal gas constant and T is temperature.
(b)
Interpretation:
The representation of gas when pressure is increased from 1 atm to 2 atm at constant temperature needs to be determined.
Concept introduction:
On increasing the pressure, the space between the particles decreases as they come closer to each other. This results in a decrease in the volume.
The ideal gas equation is represented as follows:
Here, P is pressure, V is volume, n is the number of moles, R is Universal gas constant and T is temperature.
(c)
Interpretation:
The temperature is decreased from 300 K to 200 K and pressure is decreased from 3 atm to 2 atm.
Concept introduction:
When the temperature of a gas is decreased, the speed of the gaseous molecules decreases. Due to the decrease in the speed of the molecules, the space between them decreases, hence, the volume of gas decreases.
Similarly, on decreasing the pressure, the space between the particles increases as they become far from each other. This results in an increase in volume.
The ideal gas equation is represented as follows:
Here, P is pressure, V is volume, n is the number of moles, R is Universal gas constant and T is temperature.
Want to see the full answer?
Check out a sample textbook solutionChapter 10 Solutions
LCPO CHEMISTRY W/MODIFIED MASTERING
- 5.19 A sample of CO2 gas has a pressure of 56.5 mm Hg in a 125-mL flask. The sample is transferred to a new flask, where it has a pressure of 62.3 mm Hg at the same temperature. What is the volume of the new flask?arrow_forwardA typical barometric pressure in Redding. California, is about 750 mm Hg. Calculate this pressure in atm and kPa.arrow_forward47 HCl(g) reacts with ammonia gas, NH3(g), to form solid ammonium chloride. If a sample of ammonia occupying 250 mL at 21 C and a pressure of 140 torr is allowed to react with excess HCl, what mass of NH4Cl will form?arrow_forward
- If equal masses of O2 and N2 are placed in separate containers of equal volume at the same temperature, which of the following statements is true? If false, explain why it is false. (a) The pressure in the flask containing N2 is greater than that in the flask containing O2. (b) There are more molecules in the flask containing O2 than in the flask containing N2.arrow_forwardYou have a 550.-mL tank of gas with a pressure of 1.56 atm at 24 C. You thought the gas was pure carbon monoxide gas, CO, but you later found it was contaminated by small quantities of gaseous CO2 and O2. Analysis shows that the tank pressure is 1.34 atm (at 24 C) if the CO2 is removed. Another experiment shows that 0.0870 g of O2 can be removed chemically. What are the masses of CO and CO2 in the tank, and what is the partial pressure of each of the three gases at 25 C?arrow_forwardLiquid oxygen was first prepared by heating potassium chlorate, KClO3, in a closed vessel to obtain oxygen at high pressure. The oxygen was cooled until it liquefied. 2KClO3(s)2KCl(s)+3O2(g) If 171 g of potassium chlorate reacts in a 2.70-L vessel, which was initially evacuated, what pressure of oxygen will be attained when the temperature is finally cooled to 25C? Use the preceding chemical equation and ignore the volume of solid product.arrow_forward
- A flask is first evacuated so that it contains no gas at all. Then, 2.2 g of CO2 is introduced into the flask. On warming to 22 C, the gas exerts a pressure of 318 mm Hg. What is the volume of the flask?arrow_forwardA study of climbers who reached the summit of Mount Everest without supplemental oxygen showed that the partial pressures of O2 and CO2 in their lungs were 35 mm Mg and 7.5 mm Hg, respectively. The barometric pressure at the summit was 253 mm Hg. Assume the lung gases are saturated with moisture at a body temperature of 37 C [which means the partial pressure of water vapor in the lungs is P(H2O) = 47.1 mm Hg]. If you assume the lung gases consist of only O2, N2, CO2, and H2O, what is the partial pressure of N2?arrow_forward
- Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningGeneral, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning