a bicycle tyre is filled with air having pressure of 230 kpa at zig

An automobile tire with a volume of 0.6 m3 is inflated to a gage pressure of 250 kPa. Calculate the mass of air in the tire if the temperature is 50°C.*a) 2.46 kgb) 2.51 kgc) 2.26 kgd) 2.31 kg

A car tyre has an internal volume of 0.03m³and is filled with air of mass 0.049kg at 20degrees Celsius. Using appropriate gas constantsand ideal gas laws;i) Calculate the pressure in the tyre in kPa.ii) Calculate the pressure in the tyre if thetemperature were 40°C.iii) Using the pressure from the initialconditions, calculate the mass of the internalgas if Nitrogen were to be used instead or air.iv) Using the Van der Waals equation, statethe percentage of inaccuracy in part ‘c’ of thisquestion

7. A student measures the air pressure inside her bicycle tires before and after she goes on a long bike ride. What will she most likely observe.1 pointThe pressure in both tires is lower after the ride.The pressure in both tires is higher after the ride.The pressure in the front tire is higher after the ride, and the pressure in the back tire is lower after the ride.The pressure in the back tire is higher after the ride, and the pressure in the front tire is lower after the ride.

The air pressure inside a tyre is 200 kPa.  Calculate the force which this air will exert on the inside surface of the tyre if it has a surface area of 0.1 m2.20,000 N2,000,000 N2,000 N20 N2A given amount of gas is held inside a container.  The volume of the container can be changed using a movable piston.  Which of the following will cause the pressure which the gas exerts on the walls of the container to decrease?Pumping more gas into (increasing the number of particles inside) the containerHeating the gasPulling the piston outwards (so that the volume of the container increases)Pushing the piston inwards (so that the volume of the container decreases)3A submarine experiences a pressure of 100,000 Pa at the surface of the sea.  Calculate the total pressure which it will experience when it descends to a depth of 100 metres.  The density of seawater is approximately 1,030 kg/m3, and the value of g is 10 N/kg.1,030,000 Pa110,300 Pa1,130,000 Pa10,300 Pa4A boy is swimming 5 metres below the surface of a swimming pool.  How will the pressure exerted on him change when he swims back to the surface?  The density of the water in the pool is approximately 1000 kg/m3 and the value of g is 10 N/kg.The pressure will decrease by 500 PaThe pressure will increase by 50,000 PaThe pressure will increase by 500 PaThe pressure will decrease by 50,000 Pa5An object is described as having neutral buoyancy.  Which of the following statements do NOT apply to it?It will be in a state of equilibriumIt is less dense than the fluid in which it is submergedThe pressure exerted on it will increase with depthIts weight is equal in magnitude to the upthrust force acting on it6Which of the following describes how atmospheric pressure (the pressure of the air that makes up our atmosphere) changes with altitude?It increases as altitude increasesIt remains constantWhether it increases, decreases or stays the same depends on local weather conditionsIt decreases as altitude increases

8. A bicycle pump contains 70 cm3 of air at a pressure of 1.0 atmosphere and a temperature of 7°C. Whenthe air is compressed to 30 cm3 the temperature rises to 27 °C.This is because the person is doing work on the gas inside thepump, which increases the internal energy of the gas. Themolecules move faster and the temperature rises. What is thepressure now?Ans: