মূল বিষয়বস্তুতে যান

State PCS PYQPrelims 2022

BPSC – Combined Competitive Examination · প্রশ্ন 118

Which law states that equal volumes of all gases at the same temperature and pressure contain the same number of molecules?

Graham's law
Pascal's law
Avogadro's law
Coriolis effect
None of the above / More than one of the above

উত্তর দেখান ও ব্যাখ্যা

উত্তর: (C) Avogadro's law

ব্যাখ্যা

Avogadro's law (1811): V ∝ n at constant T and P.

(A) ভুল
Wrong: deals with diffusion rates.
(B) ভুল
Wrong: deals with pressure in fluids.
(C) সঠিক
Correct: this is Avogadro's law.
(D) ভুল
Wrong: deflection due to Earth's rotation.
(E) ভুল
Wrong: only one of the options A–D is correct.