A set of bookshelves rests on a hard floor surface onfour legs, each having a cross-sectional dimension of3.0 x 4.1 cm in contact with the floor. The total mass ofthe shelves plus the books stacked on them is 262 kg. Calculatethe pressure in pascals exerted by the shelf footingson the surface.

Q: CalculateThe density in grams/liter 0f amm0nia at100oC,under a pressure 0f769mmHg

A: The relationship between temperature (T), pressure (P) and density (ρ) is,      P  =  ρRT    R =…

Q: The fuel for combustion is propane gas, which is produced at a rate of 4 moles/h. The combustion…

A: Answer: Combustion reaction of propane is shown below: C3H8(g)+5O2(g)→3CO2(g)+4H2O(g) According to…

Q: An “empty” gasoline can with dimensions 15.0 cm by 40.0 cm by 12.5 cm is attached to a vacuum pump…

A: Here the given pressure in Pa since Pa is the unit of pressure and unit of pressure=force of 1 N/m2…

Q: A sample of air occupies 1.0 L at 25 °C and 1.00 atm. What pressure is needed to compress it to 100…

A: Here given, Initial Volume (V1) = 1 L  Initial Temperature (T1) = 250 C = (273 +25) K = 298 K…

Q: An ordinary gasoline can measuring 30.0 cm by 20.0 cm by 15.0 cm is evacuated with a vacuum pump.…

A:

Q: On a certain day, a laboratory barometer indicates that the atmospheric pressure is764.7 torr. A…

A: The required expression is given below.

Q: A gas is trapped inside a cylinder and occupies 77.6 mL at a pressure of 629.5 torr at a temperature…

A:

Q: IF V = 2.01 X 10 3L @ 1150 DEGREES CELSIUS , V = 5.00 L @ ? DEGREES CELSIUS (PRESSURE, N = CONST)

A: A numerical problem based on gas law, which is to be accomplished.

Q: A bicycle tire is filled to a pressure of 110. psi at a temperature of 30.0oC. At what temperature…

A: Given : P1 = 110 psi P2 = 105 psi T1 = 30.0°C

Q: At what temperature is the root-mean-square speed of nitrogenmolecules equal to the root-mean-square…

A: The temperature of the hydrogen molecule is given as 293 K The molar mass of N2 and H2 are 28.014…

Q: An ordinary gasoline can measuring 30.0 cm by 20.0 cm by15.0 cm is evacuated with a vacuum pump.…

A: Given: Gasoline Can Dimension = 30.0cm××20.0cm××15.0cm Atmospheric Pressure = 14.7 psi Need to find…

Q: A mixture of four gases is placed in the same container, maintained at a set temperature and…

A: The root mean square formula is, Vrms = √3RT ÷ √M where, R = gas constant, T = temperature and M =…

Q: What is the ratio of effusion rates for the lightest gas, H₂, andthe heaviest known gas, UF₆?

A: Molar mass of H2 gas =2.00 g/mol Molar mass of UF6 gas =352.02 g/mol

Q: Is the rate of effusion of a gas higher than, lower than, or equal to its rate of diffusion?…

A: Diffusion of a gas is a phenomenon by which the molecules of gases mix gradually because of the…

Q: Hydrogen produced from a hydrolysis reaction was collected over water. The data is compiled in the…

A: To calculate moles of H2 , we would use ideal gas law and use given values.  As gas is collected…

Q: Is the rate of effusion of a gas higher than, lower than, orequal to its rate of diffusion? Explain.…

A: At particular temperature, the most probable molecular speed increases as the molar mass decreases…

Q: On a single plot, qualitatively sketch the distribution ofmolecular speeds for (a) Kr(g) at -50 °C,…

A: The molecules of gases are in random motion. The speed of the molecules is affected by the…

Q: Balloon A contains neon (MM=20.2 g mol-1) at 300 K. If balloon B contains oxygen (MM=32.0 g mol-1),…

A:

Q: What volume does 0.118 mol of helium gas at a pressure of0.97 atm and a temperature of 305 K occupy?…

A: For He gas : Ideal gas equation : PV = nRT 0.97 x V = 0.118 x 0.0821 x 305  V = 3.046 L For Ar gas :…

Q: Calculate the volume 3.00 moles of a gas will occupy at 24.0ºC and 105.2 kPa.

A: The ideal gas law states that the pressure, temperature, and volume of gas are related to each other…

Q: S. What pressure in mmHg will be exerted by 2.6 moles of a gas contained in a 6 Liter vessel at 180…

A: 8. Given data : Number of moles = 2.6 moles Volume = 6 L Temperature = 180 K

Q: A quantity of gas at 27.0 is heated in a closed vessel until the pressure is doubled. To what…

A: Using gas equation, we have (P1*V1) /T1=(P2*V2) /T2 where P=Pressure, V=Volume and T=Absolute…

Q: Describe how mass and temperatureaffect the distribution of molecular speedsof gases

A: Gas is the state of matter where the molecules are loosely held with each other.The molecules move…

Q: At about what pressure would the mean free path of air molecules be (a) 0.10 m and (b) equal to the…

A:

Q: A sample of nitrogen has a volume of 4.72 L at 1,040 mmHg and -31 degree C. What volume will it…

A: V1 = 4.72 L P1 = 1040 mmHg = 1.368 atm T1 = – 31°C = (–31 + 273 )K = 242 K At STP, P2 = 1 atm T2 =…

Q: the pressure of Penguinite gas (MM = 85.1 g/mol) is measured to 800. torr at 35 ° calculate its…

A: Temperature = 35°C = 308.15 K Pressure = 800 Torr Molar mass = 85.1 g/mol Density = ? Ideal gas…

Q: A 160 L kiln is used for vitrifying ceramics. It is currently operating at 1325 °C , and the…

A: The ideal gas equation is given by,                                            PV = nRT Where, P is…

Q: A mixture of helium (He) and methane (CH₄) is placed in an effusion appara-tus. Calculate the ratio…

A: To calculate the ratio of the effusion rates, we need to know Graham's law of effusion. Graham's…

Q: A hot-air balloon ascends to a height at which the surrounding air pressure is  1/5 of that on the…

A:

Q: Suppose that a woman weighing 130 lb and wearing highheeledshoes momentarily places all her weight…

A: Pressure=ForceArea         Force=W=MgP=1300.50=260 lpinch21 lpinch2=6.8948 kilo pascals 260…

Q: Hydrogen gas is produced when zinc reacts with sulfuric acid:Zn(s) + H2SO4(aq)------>ZnSO4(aq) +…

A: According to the gas equation, P V = n R T … (1) Substituting the values in eq (1),  {1 L * torr =…

Q: The gill is an obscure unit of volume. If some H2(g) has avolume of 17.4 gills at 100°F, what volume…

A: Step : 1              What volume would it have if the temperature were reduced to 0°F ?

Q: what pressure is exerted by 870.2g of CH4 in a 0.630L steel container at 240.8K?

A: According to ideal gas law  PV = nRT  where P = pressure in atm  V = volume in L = 0.63 L (given) n…

Q: If the pressure of the gas inside the flask were increased andthe height of the column in the…

A: On increasing pressure the height of open end of column is increased by 5.0 mm. This means the…

Q: What pressure (in atm) is exerted by a column of toluene (C7H8) 87.0 m high? The density of toluene…

A:

Q: occupies a v01ume of a50 mLat a tempurature 252°c and a pressure Of 1554 to1r?

A:

Q: . Compare the root-mean-square speed of helium atomsnear the surface of the sun, where the…

A:

Q: Suppose that a woman weighing 130 Ib and wearing high heeled shoes momentarily places all her weight…

A: Pressure is deefined as the force per unit area. Mathematically,

Q: A balloon is inflated to a volume of 8.5 Lon a day when the atmospheric pressure is 1.013 har The…

A:

Q: of effusion of a given gas is i al to the square root of its mo cant volume and fixed amount xerted…

A: Gas law's are applicable for ideal gases By combining all gas laws we can find the over all gas…

Q: If it takes 3.52 seconds for 10.0 mL of helium to effuse through a hole in a container at a…

A: Given : Time required by helium to effuse = 3.52 s Volume of helium i.e He effused = 10.0 mL And…

Q: Calculate the pressure in pascals exerted on a tabletop by a cube of iron that is 4.00 centimeters…

A: The pressure (P) exerted on a tabletop is calculated by the formula,

Q: A set of bookshelves rests on a hard floor surface on four legs, each having a cross-sectional…

A: Given,The total mass of the shalves and books = 262 kgDimension of the surface in contact with…

Q: A gas vessel is attached to an open-end manometer filled with a nonvolatile liquid of density 1.561…

A: Density of Mercury, d2 = 13.59 g/mL or 13590 kg/m3.  Density of liquid, d1 = 1.561 g/mL or 1561…

Q: 10.16 A set of bookshelves rests on a hard floor surface on four legs, each having a cross-sectional…

A: Force exerted by shelves is calculated by the formula,

Q: After a flood fills a basement to a depth of 9.0 feet andcompletely saturates the surrounding earth,…

A: Given:  Height = 9.00 ft density of mud = 4.9 g/cm3  Gravity = 9.8 m/s2

Q: A gas made up of homonudear diatomic molecules escapes through a pinhole 0.230 times as fast as H,…

A: Given: The rate of diffusion of homonuclear diatomic gas is 0.230 times fast than that of H2 gas.

Q: . A sample of N2O effuses from a container in 42.0 seconds. How long will it take the same amount of…

A: Rate of effusion is inversely proportional to Molar mass of the gas . rate = 1M