The most dangerous particles in polluted air are those with diameters less than 2.5 μm because they can penetrate deeply into the lungs. A 15-cm-tall closed container holds a sample of polluted air containing many spherical particles with a diameter of 2.5 μm and a mass of 1.4 x 10-14 kg. How long does it take for all of the particles to settle to the bottom of the container?

Q: Anguia has a density of 3 g/mL. What is the mass of 21 mL of the liquid? A metal has a density of…

A:

Q: There is relatively little empty space between atoms in solids and liquids, so that the average…

A: It is given that,

Q: A roll of kitchen aluminum foil is 30 cm wide by 22 m long (if you unroll it). If the foil is 0.15…

A: (a) 2.67 kg

Q: A tank contains gas molecules of mass m and temperature T. Determine : (a) The average speed of the…

A: a) avarage speed  V = √(8RT/πM)  b) since due to random motion plaeticles of molecule moves in all…

Q: A sodapop can is 25 cm tall and made of aluminum. It has a mass of 50 grams. The soda is currently…

A:

Q: A car is carrying a piece of plywood with dimensions 2.40 m by 1.15 m.  If the mass of the plywood…

A:

Q: Two liquids are inside a U-shaped tube with densities pL = Ph = 0.82 g/cm as shown in the figure…

A:

Q: The leaves of a tree lose water to the atmosphere via the process of transpiration. A particular…

A:

Q: A gas behaves as an ideal gas at, a. Low pressure and high density b. High pressure and low…

A: Introduction: An ideal gas is defined as the gas whose molecules occupy negligible space and do not…

Q: 14) If a solute diffuses through water an average distance of 2cm in 2hours, what is its diffusion…

A: As you have asked for question 14 only therefore I am solving that question only. Given : x = 2 cm =…

Q: The rms speed of a gas molecule is more, if: a. temperature is zero b. temperature is less C. molar…

A: Rms speed is depends on mass and temperature

Q: n a lab a ft long test tube contains gas (density equals 748.9 km/m3) and oil ( density equals to…

A: Pressure in a fluid varies with the distance as P=ρgh, where ρ is density of the fluid.

Q: A light hollow tube of 2.00 cm diameter and 1.0 m length is filled with tiny beads of different…

A: Coordinate of center of mass is given by the formula: xCM=∫xρx dx∫ρx dx

Q: Low-density polyethylene (LPDE) is a thermoplastic widely used in packaging materials. The density…

A:

Q: 3. The density of mercury is 1.36 x 10 kg/m. What is the mass of a 2.16 x 10- m sample of mercury?…

A: Part (3): Given: The density of the mercury is 1.36x104 kg/m3. The volume of the sample is 2.16x10-4…

Q: There is relatively little empty space between atoms in solids and liquids, so that the average…

A:

Q: Which of the following describes a real gas better? A) gas particles repel each other B) all…

A: Ques: Which of the following describes a real gas better? A) gas particles repel each other B) all…

Q: One mole of 'nickel (6 × 1023 atoms) has a mass of 59 grams, and its density is 8.90 grams per cubic…

A: String stiffness of wire considering it as macroscopic

Q: The plunger of a syringe has an internal diameter of 1.0 cm and the end of the needle has an…

A: Given data: The internal diameter of plunger of syringe is, d1=1 cm=10 mm. The internal diameter at…

Q: A balloon with mass 12 kg is inflated to a volume of 26 m^3 using a gas of density 0.51 kg/m^3. What…

A:

Q: A 13 cm radius air duct is used to replenish the air of a room 9.1m×5.5m×3.8m every 17 min. How fast…

A: Given information: Here, r is the air duct’s radius, V is the room’s volume and t is the time…

Q: A tube has a length of 0.045 m and a cross-sectional area of 5.9 x 10-4 m2. The tube is filled with…

A:

Q: a cell it is very fast. The average instantaneous velocity of a particle in solution—that is, the…

A: Given:- The velocity between its very frequent collision isv = (kT/m)½ where k = 1.38 × 10–16 g…

Q: 14) If a solute diffuses through water an average distance of 20cm in 2hours, what is its diffusion…

A: As you have asked for question 14 only therefore I am solving that question only. Given  : x = 20 cm…

Q: #5A-C

A:

Q: In 2009, one of the U.S government’s bailout packages was $700 billion when gold was worth $800 per…

A: U.S government’s bailout packages was $700 billion when gold was worth $800 per ounce ($28.20 per…

Q: There is relatively little empty space between atoms in solids and liquids, so that the average…

A:

Q: A four-cylinder aircraft engine has a cylinder bore of 3.78 inches & is 8.5 inches deep. With the…

A: Given: No. of cylinders (n)= 4 bore radius (r) =3.78/2 = 1.89 inches  bore height (h)=8.5 inches…

Q: The plunger of a syringe has an internal diameter of 1.0 cm and the end of the needle has an…

A:

Q: A 19 cmcm radius air duct is used to replenish the air of a room 7.6m×6.7m×3.8m every 15 min. How…

A: The rate of airflow equals the area times the speed of the airflow. Now,

Q: A beaker contains 100 ml of water. An egg is placed in the water and now the beaker reads 150 ml.…

A:

Q: A 17 cm radius air duct is used to replenish the air of a room 8.8m•5.0m•3.8m every 15 mins. How…

A:

Q: The density of aluminum is 2700 kg/m3. How many atoms are in a 2.0 cm × 2.0 cm × 2.0 cm cube of…

A: the density is, ρ=2700 kgm31000 g1 kg10-6 m31 cm3ρ=2.7 gcm3 the mass of the aluminum for the given…

Q: A scientist measured the pressure of a sample of gas at various volumes. The temperature of the gas…

A: According to Boyles law at constant temperature , P1V1=P2V2

Q: The plunger of a syringe has an internal diameter of 1.0 cm and the end of the needle has an…

A: Given data: The pressure of blood is p=20 mmHg. The diameter of syringe is d=0.35 mm. The diameter…

Q: Air is flowing through a rocket nozzle. Inside the rocket the air has a density of 5.25 kg/m3 and a…

A:

Q: A box has a volume of 3.5 m3. The volume of the box, in ft3, is closest to: a) 35 b) 53 O c) 59 O d)…

A: given: V =3.5 m3

Q: The density of two liquids (A and B) is given as 1000 kg/m3 and 600 kg/m3, respectively. The two…

A: Express the mass of liquid A. MA=ρAVA  -----1 Here, MA is the mass, ρA is the density and MA is the…

Q: A chamber is filled with a gas that has a pressure of 0.250 atm and ???is connected to a…

A: Given data Pressure in the chamber, P=0.250 atm=0.250×1.01×105 Pa

Q: A balloon is filled with 400 m3 of helium. How big a payload can the balloon lift? (The density of…

A:

Q: A sample of ideal gas is in a sealed container. The temperature of the gas and the volume of the…

A: As the temperature of the gas increases, the thermal energy of the gas increases. As the atoms of…

Q: Two gases flow into separate ducts and merge into a single duct. Gas1 has a density of 1.5 kg/m3 and…

A: Given data: Density for gas 1 ρ1=1.5 kg/m3 Area for flow of gas 1 A1=0.25m2 Density for gas 2 ρ2=0.8…

Q: What is the lower concentration?

A: Fick's Law of Diffusion The mass of a solute M diffusing into a solvent kept in a container of…

Q: The absolute density of a substance in g/cm^3 A) Is greater than its relative density B) Equals its…

A: The density is defined a the mass per unit volume.  The SI unit of density is kg/m3 and the CGS unit…

Q: The speed of five molecules in m s' is 10, 20, 30, 40, and 50 respectively. Which of the statements…

A: Given : The speed of five molecules in ms-1 v1 = 10  v2 = 20 v3 = 30 v4 = 40 v5 = 50

Q: A beaker contains 100 ml of water. An egg is placed in the water and now the beaker reads 150 ml.…

A: If an object has mass 'm' and volume 'V' then the density of the object can be found using the…

Ideal Gas Law

Ideal gas law states that the product of pressure and volume of a gas directly varies with the product of the number of moles, the universal gas constant, and the temperature of the gas.