Question 1
Gas LawsWhich of the following statements is correct?
- A.The average kinetic energy of a gas is directly proportional to its temperature
- B.At constant temperature, the volume of a gas increases as the pressure increases
- C.The pressure of a gas is inversely proportional to its volume
- D.The temperature of a gas is directly proportional to its volume
- E.The collisions of molecules with each other are inelastic
Show the answer and explanation
Answer: A (The average kinetic energy of a gas is directly proportional to its temperature)
Explanation
Kinetic theory says the average kinetic energy of gas molecules is proportional to the absolute temperature. B is the reverse of Boyle's law, C and D leave out the condition that the other variable is constant, and collisions are taken as elastic.