a) State four assumptions of the kinetic theory of gases. (4 marks)

b) A sample of gas occupies 500 cm³ at a temperature of 27°C and a pressure of 1.5 atm. Calculate the volume the gas would occupy at standard temperature and pressure (STP). (4 marks)

c) i) State Dalton's Law of Partial Pressures. (2 marks)
ii) A mixture of gases contains nitrogen and oxygen. The total pressure of the mixture is 800 mmHg. If the partial pressure of nitrogen is 600 mmHg, calculate the mole fraction of oxygen in the mixture. (3 marks)

d) State two differences between an ideal gas and a real gas. (2 marks)

Question

a) State four assumptions of the kinetic theory of gases. (4 marks)

b) A sample of gas occupies 500 cm³ at a temperature of 27°C and a pressure of 1.5 atm. Calculate the volume the gas would occupy at standard temperature and pressure (STP). (4 marks)

c) i) State Dalton's Law of Partial Pressures. (2 marks)
   ii) A mixture of gases contains nitrogen and oxygen. The total pressure of the mixture is 800 mmHg. If the partial pressure of nitrogen is 600 mmHg, calculate the mole fraction of oxygen in the mixture. (3 marks)

d) State two differences between an ideal gas and a real gas. (2 marks)

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