People buying food in sealed bags at high elevations often notice that the bags are puffed up because the air inside has expanded. A bag of pretzels was packed at a pressure of 0.98 atm and a temperature of 21.0°C. When opened at a summer picnic in Santa Fe, New Mexico, at a temperature of 30.0°C. the volume of the air in the bag is 1.32 times its original volume. What is the pressure of the air (in atm)?

People buying food in sealed bags at high elevations often notice that the bags are puffed up because the air inside has expanded. A bag of pretzels was packed at a pressure of 0.98 atm and a temperature of 21.0°C. When opened at a summer picnic in Santa Fe, New Mexico, at a temperature of 30.0°C. the volume of the air in the bag is 1.32 times its original volume. What is the pressure of the air (in atm)?

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter2: Matter And Energy

Section: Chapter Questions

Problem 17RQ: At a constant pressure, how does a volume of gas vary with respect to the absolute temperature?

See similar textbooks

Similar questions

The fixed volume container contains 7.5 kg air at 22ºC temperature and 140 kPa pressure. Air is added to the container until the pressure is 250 kPa and the temperature is 37ºC. What is the mass of air added to the container? A-3,845 kgB-1,267 kgC-5,246 kgD-2,56 kgE-4,223 kg (Note: This question is Turkish) orginal question: Sabit hacimli kapta 22ºC sıcaklık ve 140 kPa basınçta7.5 kg hava bulunmaktadır. Basınç 250 kPa ve sıcaklık 37ºC olana kadar kaba hava eklenmektedir. Kaba eklenen hava kütlesi nedir?
A closed assembly contains 2lg of air at an initial pressure and a temperature of 140 kpa and 210 celcius. If the volume of the system is doubled and the temperature drops to 37 celcius determine the final pressure of air.
Four pounds of air are contained at 20psig and 100°F. What is the volume of the container?
A vessel of 0.03 m33 capacity contains gas at 3.5 bar pressure and 35°C temperature. Determine the mass of the gas in the vessel. If the pressure of this gas is increased to 10.5 bar while the volume remains constant, what will be the temperature of the gas ? For the gas take R = 290 J/kg K.
A 20.0 L container is filled with helium and the pressure is 150 atm and the temperature is 30°C. How many 5.0 L balloons can be filled when the temperature is 22°C and the atmospheric pressure is 755 mm Hg.
If a 3 m3 tank contains 45 kg of oxygen at 50°C, what is the gage pressure in the tank? The specific gas constant of oxygen is R=0.25983 kJ/kg-K.
A rigid tank contains 15kg of water at 75 degrees celcius. if 3kg the water is in the vapor form and the rest is in the liquid form, determine (a) the pressure in the tank and (b) the volume of the tank
A gas is initially at 0°C and 0 gage pressure. The temperature is raised to 171°C at constant volume. What is the new gage pressure?(include units with answer)
A 725L rigid tank contains steam (water vapor) having a temperature of 125°C and pressure of 0.2 bars. Determine the mass of the steam.
The pressure gage on a 2.5-m3 oxygen tank reads 500 kPa. Determine the amount of oxygen in the tank if the temperature is 28.5°C and the atmospheric pressure is 97 kPa. m³/kg-K. The gas constant of air is R= 0.2598 kPa-m P= 500 kPa 02 V = 2.5 m3 T°C The amount of oxygen in the tank is kg.
When boiling food the cooking temperature is limited to about 100° C. Pressure cookers allow for faster cooking by increasing the boiling temperature of water using increased pressure. The pressure within the sealed cooker can be varied by using different weights to seal the vent. A pressure cooker containing 5kg of water is to be used to cook potatoes at 150°C determine (a) what pressure is necessary to maintain the desired boiling temperature and (b) the mass of the weight that must be used in order to maintain the pressure determined in part (a) given a round vent with a diameter of 1cm, (c) if the pressure cooker has a volume of 15L what is the quality of the steam within the pressure cooker the instant it reaches temperature, before any steam is vented (assuming all air has been purged from the cooker by this point) , and (d) how long can the potatoes be cooked at the desired temperature before all the water is boiled away if heat is being added to the system by a 8000 Watt burner
Evaluate the volume occupied by 7.12 kg of air at a gage pressure of 615 kJ and temperature of 776.85 C.