ICSE Class 10 Kinetic Theory of Gases — Mock Test (2027)
Free online mock test for Kinetic Theory of Gases (ICSE Class 10 Physics) — 114 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.
What to expect: This mock test covers key concepts from the Kinetic Theory of Gases chapter — including application-based and competency-focused questions aligned with how ICSE actually sets the paper.
Tip: Attempt without notes first to identify gaps, then review explanations for any wrong answers. Retake after a few days for best retention.
Sample questions
-
1.Assertion (A): For several gases the experimentally measured specific heats are larger than the values predicted by ignoring vibrational modes. Reason (R): Including vibrational modes of motion adds further energy modes and improves the agreement between predicted and measured specific heats.
- A.Both A and R are true and R is the correct explanation of A
- B.Both A and R are true but R is NOT the correct explanation of A
- C.A is true but R is false
- D.A is false but R is true
-
2.For a diatomic molecule, rotation about the axis joining the two atoms does not come into play because
- A.it has very small moment of inertia (for quantum mechanical reasons)
- B.it has very large moment of inertia
- C.the atoms cannot rotate
- D.it violates conservation of momentum
-
3.Three equal-capacity vessels at the same temperature and pressure contain neon (monatomic), chlorine (diatomic) and uranium hexafluoride (polyatomic). Which conclusion is CORRECT (Exercise 12.8)?
- A.All three contain equal numbers of molecules, and neon has the largest rms speed
- B.All three contain equal numbers of molecules, and all have equal rms speed
- C.The numbers of molecules differ, and uranium hexafluoride has the largest rms speed
- D.All three contain equal numbers of molecules, and uranium hexafluoride has the largest rms speed
-
4.Assertion (A): A gas leaking from a cylinder takes considerable time to diffuse across a room even though its molecules move at speeds of the order of the speed of sound. Reason (R): The molecules have a finite size and undergo frequent collisions, so their paths are incessantly deflected (small mean free path compared with the room).
- A.Both A and R are true and R is the correct explanation of A
- B.Both A and R are true but R is NOT the correct explanation of A
- C.A is true but R is false
- D.A is false but R is true
-
5.The root mean square (rms) speed of a gas molecule is given by
- A.vrms = sqrt(3 kB T / m)
- B.vrms = sqrt(2 kB T / m)
- C.vrms = sqrt(kB T / m)
- D.vrms = sqrt(3 m / kB T)
Want the full 114-question test with instant marking & AI feedback?
Sign up free →