Ideal Gas Equation -Multiple Choice Questions Quiz

Question 1: What is the Ideal Gas Equation?

(a) PV = nRT
(b) PV = RT/n
(c) P = nRT/V
(d) P = nV/RT

Question 2: Which of the following assumptions is NOT a part of the Ideal Gas Law?

(a) The gas particles have negligible volume.
(b) The gas particles are in constant random motion.
(c) The gas particles experience intermolecular attractions.
(d) The collisions between gas particles are elastic.

Question 3: Under which conditions do real gases behave most like an ideal gas?

(a) High temperature and high pressure
(b) High temperature and low pressure
(c) Low temperature and high pressure
(d) Low temperature and low pressure

Question 4: At constant temperature and pressure, if the volume of an ideal gas is doubled, how does the number of moles change?

(a) It becomes half
(b) It becomes double
(c) It remains the same
(d) It becomes four times

Question 5: What happens to the pressure of an ideal gas if its volume is decreased while keeping the temperature constant?

(a) It decreases
(b) It increases
(c) It remains the same
(d) It becomes zero

Question 6: At what temperature is the volume occupied by one mole of an ideal gas equal to 22.4 liters at standard temperature and pressure (STP)?

(a) 0°C
(b) 273°C
(c) 0 K
(d) 273 K

Question 7: Which gas law is derived from the Ideal Gas Equation when the number of moles and temperature are kept constant?

(a) Boyle's Law
(b) Charles's Law
(c) Gay-Lussac's Law
(d) Avogadro's Law

Question 8: What happens to the volume of an ideal gas at absolute zero temperature (0 K)?

(a) It decreases to zero.
(b) It remains the same as at STP.
(c) It becomes infinite.
(d) It cannot be determined.

Question 9: Which of the following is the value of the Universal Gas Constant (R) in the Ideal Gas Equation?

(a) 0.08206 L.atm/mol.K
(b) 8.314 J/mol.K
(c) 1.987 cal/mol.K
(d) All of the above

Question 10: Which gas law describes the relationship between the pressure and temperature of an ideal gas when the volume is constant?

(a) Boyle's Law
(b) Charles's Law
(c) Gay-Lussac's Law
(d) Avogadro's Law

Results:

Total score: /10

Answer key:

Question 1: a

Question 2: c

Question 3: b

Question 4: c

Question 5: b

Question 6: d

Question 7: a

Question 8: a

Question 9: d

Question 10: c

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