An inflated car tyre is considered to have a constant volume, regardless of any changes in temperature or pressure.Use the kinetic molecular theory of gases to answer the following (a) How does air in the tyre exert a pressure on the walls of tyre? (b) Why is the pressure the same at all points on the inside wall of the tyre?

Q: Coefficient of compressibility of water is kw = 2110 MPa. This means that to create +1.00%…

A: Given   Pressure change, dP = 21.10 MPa   Compressibility, k = 1182.3 MPa Find   The fractional…

Q: Compare the pressure of 30 kg of air in a vessel of temperature 300 K and volume 8 m3 by considering…

A:

Q: 0.05 kg of molecular oxygen is contained in a spherical balloon at 1.100 atm, at 95°F. (a) What is…

A: Given data:-Mass of oxygen (m) = 0.05 kg Pressure (P) = 1.100 atm=101.325 KPaTemperature (T) =…

Q: An perfect gas of a specific composition At 10 g/mol, the molecular weight and specific heat ratio…

A:

Q: For a gas, which of the following does not vary with temperature? - the gas soecific weight - the…

A: According to the law of ideal gases , PV = mRT

Q: A thin, circular, 0.860-kg disk of wood has a radius of 20.0 cm and floats on top of a cylindrical…

A: Solution: Assuming the density of the anti freeze=1050kg/m3 Weight of the wooden disk…

Q: A quantity of 0.44 moles of air enters a diesel engine at a pressure of 148 kPa and at a temperature…

A: Given Data The number of moles are: n=0.44 The Pressure at the entry is: P=148 kPa The temperature…

Q: Question 38 What is the bulk modulus of an ideal gas if the pressure decreases by 30.0 MPa and the…

A: Given: The pressure of an ideal gas is decreased by ∆P=30.0 MPa, The volume of an ideal gas is…

Q: We are going to do some super-hot yoga and have pressurized the classroom to 1.5 atm and raised the…

A: For air: Gas constant, R = 0.287 kJ/kg.K

Q: A box contains a mixture of small copper spheres and small lead spheres. The total volume of both…

A: Given data

Q: A rubber balloon is filled with 1 L of air at 1 atm and 300 K and is then cooled to 100 K. The…

A:

Q: 750 ml of a gas is at 185 kPa gage pressure and 64 °C.  Determine the number of molecules in the…

A: Given Data: The volume of the gas, V=750 mL The pressure of the gas, P=185 kPa The temperature of…

Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.