7. Helium has the lowest condensation point of any substance, the gas liquefies at 4.2K. 1.0L of liquid He has a mass of 125g. What is the volume of this amount of He in gaseous form at STP?

Q: 7.58 An 8 cm pipe carries water with a mean velocity of 2 m/s. If this pipe abruptly expands to a 15…

A: Head loss

Q: Large helium-filled balloons are used to lift scientific equipment to high altitudes. What is the…

A: Given  Initial temperature Ti=100 C=273.15+10=283.15K  Final temperature Tf=273.15-49=224.15 K…

Q: 1 Calculate the change in veleeity given the following initial end final veloeity vecters. Seele:…

A: As per the given velocity vectors the the change in velocity is given by: final velocity minus…

Q: 6) A sample of gas is compressed to one-third of its initial volume at a constant pressure of 1.25 ×…

A: Write the given values with the suitable variables. Vf=13ViVi=3VfP=1.25×105 PaW=100 J Here, Vf, Vi,…

Q: A bigh-altitude balloon is partially filled with 3 m of helium at sea level. As the balloon ascends…

A: Boyle's law define that the product of pressure and volume remains constant. P1V1 = P2V2  P1 = 1 atm…

Q: QUESTION 14 If a 2 m³ of gas initially at STP is placed under a pressure of 3 atm, the temperature…

A: Since you have asked multiple questions, we will answer the first question for you. Kindly post the…

Q: A spray can containing a propellant gas at twice atmospheric pressure (202 kPa) and having a volume…

A:

Q: 1: A new car has a 0.040 m³ volume gas tank. It also gets 20 km/L gas mileage. How far can the car…

A:

Q: Integrated ConceptsIf you want to cook in water at 150ºC , you need a pressure cooker that can…

A: It is given that,

Q: 85. A gas, while expanding under isobaric conditions, does 480 J ofwork. The pressure of the gas is…

A: Work , W = 480 J  Pressure, P= 1.63 x 105 Pa  initial volume, V = 1.53 x 10-3 m3

Q: 5. A mass m of helium gas is in a container of constant volume V. It is initially at pressure Pand…

A:

Q: *97. mmh A fifteen-watt heater is used to heat a monatomic ideal gas at a constant pressure of 7.60…

A: Given, Pressure, P=7.6×105 Pa Power,p=15 W Change in volume, dV=0.25×1.4×10-3 Work…

Q: How much work must be done to compress the gas to 1200 cm at constant pressure? Express your answer…

A: By definition, W = ∫PdV = P∫dV    ....( Since Pressure is constant) So, W = P∆V for Isobaric…

Q: 4. A quantity of an ideal gas initially at atmospheric pressure is maintained at a constant…

A: initial pressure, P = 1 atm  initial volume, V = V Final volume, V' = V/2  Temperature is constant…

Q: 1A heating and air-conditioning engineer is desig a to move 1000 m' of air per hour at 100 kPa abs e…

A: We know that the volume flow rate is given as  Q= dVdt where V is the volume in m3 t is time to flow…

Q: 8. AN behave as ideal gases gases at STp because a.) The T and Pat STP are 273k latm and b.) The id…

A: The term STP states for the standard temperature and pressure, and it expresses the standard…

Q: A 0.0303-m container is initially evacuated. Then, 5.71 g of water is placed in the container, and,…

A:

Q: 2. Calculate the average speed V and the most probable avg speed V for Oxygen.

A:

Q: 8.0 g of helium gas follows the process 1 to 2 and to 3 shown in Figure below. Find the volume V1,…

A: According to ideal gas law -  pV=nRT Number of moles of helium gas -  n=MMmoln=8 g4 gmol=2 mol

Q: 5. Air at room temperature has density of about 1,29 kg/m3. Assuming it to be entirely one gas, find…

A: Given data: The density of the air is ρ=1.29 kg/m3. The atmospheric pressure of the air is P=1 atm.…

Q: 1. Show that both sides of the Ideal Gas Law equation have units of energy (Joules).

A:

Q: 2 The following figure shows a plastic syringe that contains air. When the syringe has a volume of…

A:

Q: 4. A horizontal piston-cylinder system containing n mol of ideal gas is surrounded by air at…

A: Given a piston fitted cylinder containing n mole of an ideal gas at temperature T0 and pressure p0 .…

Q: 4. Water at 15°C and 1 atm pressure is heated to 100°C at constant pressure. Using coefficient of…

A:

Q: Helium has the lowest condensation point of any substance; the gas liquefies at 4.2 K. 1.0 L of…

A: Given: The temperature of the gas = 4.2 K Initial volume = 1 L Mass of the helium = 125 g

Q: 16. A Goodyear blimp typically contains 5400 m³ of helium (He) at an absolute pressure of 1.1 X 10$…

A: Volume, V =5400 m3 Pressure,  P = 1.1 x 105 Pa  Temperature, T = 280 K

Q: 20. Two ideal gases have the same mass density and the same absolute pressure. One of the gases is…

A: According to the ideal gas law, PV=nRTPmρ=nRTρ=PmnRT=PMRT                    M=mn

Q: estion 3 A gas is contained in a vertical, frictionless piston cylinder device. The piston has a…

A:

Q: What is the absolute pressure of the air in your car’s tires, in psi, when your pressure gauge…

A:

Q: The gauge pressure in your car tires is 2.50×105N/m2at a temperature of 35◦C when youdrive it onto a…

A: P1 = 250000 N/m2 T1 = 35 degree celsius  = 35 + 273   = 308 K P2 = ?? N/m2 T1 = -40 degree celsius…

Q: Q4: A diffuser, has air entering at 100 kPa, 280 K, with a velocity of 200 m/s. The inlet…

A: GIVEN: entering Velocity v = 200m/s inlet cross-sectional area = 100mm2 exit velocity =20m/s  exit…

Q: A gas is kept at pressure of 200 kPa and a temperature of 30deg C in 5000L container. What is the…

A:

Q: A modern-day zeppelin holds 9,480 m3 of helium. Compute its maximum payload at sea level. (Assume…

A:

Q: When the temperature of a quantity of air at lowered by 1 degree, its volume decreases by 1/273…

A: Given, Consider initial temperature is T and Initial volume of the quantity is V.  Pressure…

Q: 1.9 Apply the grid method to calculate the density of an ideal gas us- ing the formula p = p/RT.…

A: The density of the ideal gas is 0.168 lbm/ft³

Q: A container contains 0.650 grams of He gas in a volume of 17.5 liter. If 0.260 g of He is remove a…

A: Given- Mass of He gas M1 =0.65 grams Volume V1=17.5 liter Mass  of He gas M2=0.65-0.26= 0.39 grams

Q: 5. An ideal gas occupies a volume of 6.4 L at STP. What is its gauge pressure (in kPa) if the volume…

A: Given that,v0=6.4 LP0=101 k pa    (for ideal gas)we know that,PV=nRT

Q: The absolute pressure in your car tires is 3.6 × 105 Pa at a temperature of 35.0°C when you drive it…

A:

Q: An air bubble has a volume of 1.70 cm3 when it is released by a submarine 115 m below the surface of…

A: Initial pressure = atmospheric pressure + pressure due to water coloumn P = 101325 + (115*9.8*1000)P…

Q: 1. A 20-liter sample of gas exerts a pressure of 1 atm at 25 ˚C. If it is expanded into a 40-liter…

A: According to question we need to find final pressure?

Q: 1. People buying food in sealed bags at high elevation often notice that the bags are puffed up…

A: Gas laws, laws that relate the pressure, volume, and temperature of a gas. Boyle's law—named for…

Q: 6. A hyperbaric chamber is an enclosure containing oxygen at higher than normal pressures used in…

A: Given, Volumes,V2=4.2×103L Temperature,T1=25°C=298 K,T2=17°C=290 K Pressure,P1=151 atm,P2=3 atm

Kinetic Theory of Gas

The Kinetic Theory of gases is a classical model of gases, according to which gases are composed of molecules/particles that are in random motion. While undergoing this random motion, kinetic energy in molecules can assume random velocity across all directions. It also says that the constituent particles/molecules undergo elastic collision, which means that the total kinetic energy remains constant before and after the collision. The average kinetic energy of the particles also determines the pressure of the gas.

P-V Diagram

A P-V diagram is a very important tool of the branch of physics known as thermodynamics, which is used to analyze the working and hence the efficiency of thermodynamic engines. As the name suggests, it is used to measure the changes in pressure (P) and volume (V) corresponding to the thermodynamic system under study. The P-V diagram is used as an indicator diagram to control the given thermodynamic system.