Question 11 The air in a room can be considered to be 100% oxygen, O The room is 5m wide, om long and 3m holgh. Air pres

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Question 11 The air in a room can be considered to be 100% oxygen, O The room is 5m wide, om long and 3m holgh. Air pres

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Question 11 The Air In A Room Can Be Considered To Be 100 Oxygen O The Room Is 5m Wide Om Long And 3m Holgh Air Pres 1
Question 11 The Air In A Room Can Be Considered To Be 100 Oxygen O The Room Is 5m Wide Om Long And 3m Holgh Air Pres 1 (33.96 KiB) Viewed 40 times
Question 11 The air in a room can be considered to be 100% oxygen, O The room is 5m wide, om long and 3m holgh. Air pressure is 1.01 X 10Pa The temperature is 22°C. (a) Calculate the volume of the room in m? (b) How many moles of gas are in the room? (c) The molar mass of molecular oxygen is 32g. Determine the mass of the oxygen in the room in kg. (4) Determine the density of the oxygen in the room. Question 12 A velocity-time graph of a car travelling along a road is shown below. 40 Velocity 20 0 3036 56 72 Times (a) Calculate the acceleration between 30 and 36 seconds. (b) Calculate the total distance covered by the car. (c) The car has mass 1380 kg. Determine the braking force applied between 56 and 72 seconds.
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