When air pollution is high, ozone contents can reach 0.6 ppm. How many molecules of ozone are present per liter of polluted air if the barometric pressure is 755 mmHg and the temperature is 79 °F?

Q: Solar heating of a house is much more efficient if there is a way to store the thermal energy…

A: Here we have to find the mass of the slab. Considering that the slab is 12 m2 in size and 25 cm…

Q: Safflower oil has a density of 924 kg/m³. What is the mass of 655 mL of safflower oil? Enter the…

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Q: Firewood is a traditional biomass energy source. To heat a 1500 sq.ft. house in Canada we need about…

A: Energy density of firewood=4.5 kWh/kg But efficiency of it=60% So energy produced by 1kg of firewood…

Q: If the density of a diamond is 3. 5 g/cm³ , what would be the mass of a diamond whose volume is 0. 5…

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Q: You have a raft made out of 8 logs, each with a diameter of 30 centimeters, length of 2 meters, and…

A: The mass per unit volume of an object is defined as the density of the object, to solve the given…

Q: A particular variety of wood has a density of 0.40 grammes per cubic centimetre. What is the mass in…

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Q: what is the density of ideal gas in a room whose volume is 120 cubic meter at 100kpa and 25°c

A: Write the expression for the ideal gas equation and rearrange the equation to obtain the expression…

Q: A sample of water (2 Hydrogens and one oxygen in each molecule)  has a mass of 10.0 grams. What is…

A: Write the expression for number of molecules

Q: built a raft out of 8 logs, each with a diameter of 30 centimeters, length of 2 meters, and mass of…

A: Given:-  The number of the logs is N = 8.  Each have a diameter d = 30 cm  Length L = 2 meter  The…

Q: calculate how much radiation is emitted by the Sun and the Earth (assuming the Sun's average surface…

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Q: Tungsten has a density of 19,300 kg/m³. If you have a cube of tungsten that measures 5 cm on a side,…

A: Given that,A tungsten has a density : ρ=19,300 kg/m3If you have a cube of tungsten that measures on…

Q: A person consumes about 2600 Cal a day. 1 Cal = 4186 J, and 1 kWh = 860 Cal. What is this energy in…

A: Write a given values of this question. E=2600Cal1cal=4186J1kWh=860Cal

Q: What is the density of water, when a mass of 2kg water is gradually heated to give a temperature of…

A: The density of a substance is defined as the ratio of the mass of the object to the volume occupied…

Q: What is the volume of a 4.00 kg of pile of aluminum cans that are melted , then cooled into a solid…

A: The volume of an Aluminium can that is melted, then cooled into a solid cube is 4.00kg. We would use…

Q: A pendulum swings through an angle of 12 degrees each second. If the pendulum is 14 cm in length and…

A: The angle through which the pendulum swings in each second, ϕ=12° The length of the pendulum, l=14cm…

Q: A body is found and the temperature is measured at 34.6 degrees Celsius, 30 minutes after the…

A: For such question newtons Law of cooling should be used.It states when a body cools from…

Q: A small exercise area for dogs is 27 meters long and 3.2 meters wide. What is the area of the dog…

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Q: 1.3 kg of air contains 3.9 g of water vapor in it. What is the absolute humidity of the air in the…

A: The given data are: ma=1.3 kgmv=3.9 g Here, ma, and mv represent the mass of air and the mass of…

Q: A 30 caliber rifle bullet is reported to weigh 120 grains. You have a dozen of these bullets in your…

A: Given,

Q: 24 cubic feet of a gas at a gauge pressure of 246 psig is compressed to 6 cubic feet. After the…

A: Given data: The initial volume of the gas is Vi=24 ft3. The initial pressure of the gas is Pi=246…

Q: If a certain quantity of gas has a volume of 30 cm at a pressure of 1×105 pa what is the volume when…

A: Given: The volume of the gas is 30 cm3. The initial pressure of the gas is 1×105 Pa. The final…

Q: David needs to fry 18 potatoes per hour for 3.5 hours. He can fry 6 potatoes using one gallon of…

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Q: You have a container that can change volumes to keep pressure fixed at 45 lb/in2.  The container…

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Q: The average density of apple juice is 1.33 g/mL. If 1 bottle of apple juice contains 16 fluid ounces…

A: Density of apple juice = 1.33 g/mL  Volume of one juice bottle = 16 ounces

Q: The installed capacity of geotermal energy in france is 2000 MW. Calculate how many homes can be…

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Q: Air is 21% oxygen by volume.Oxygen has a density of 1.31 g/L.What is the total volume of air in a…

A: Given data:  Volume of oxygen = 21% of volume of air Density of oxygen (ρ) = 1.31 g/L Mass (m) = 75…

Q: If your front lawn is 24.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates…

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Q: A study finds that the metabolic rate of mammals is proportional to m314, where m is the total body…

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Q: The pressure on 20 mL gas at constant temperature is changed from 10 atm to 5 atm. What is the new…

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Q: A 162 cm long aluminum rod (thermal conductivity = 205 W/m-K) has a cross-section area of 1 cm2. If…

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Q: 5.7 A pipe with a 2 m diameter carries water having a velocity of 4 m/s. What is the discharge in…

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Q: A woman violates her diet by eating a cookie that contains 100 Calories.  If she expends 0.065…

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Q: What is the volume of a sphere that has a radius of 10.0 cm and is made of aluminum

A: Volume of a material is dependent on the size of material and not on what the material is made up…

Q: A quantity of gas in a piston cylinder has a volume of 0.533 m3. If the gas is initially at room…

A: T1V1=T2V2T2=T1V1V2

Q: A quantity of gas in a piston cylinder has a volume of 0.373 m3. If the gas is initially at room…

A: