Related Questions

একটি কণা t = 0 সময়ে স্থির অবস্থা থেকে যাত্রা শুরু করে। কণাটির ওপর প্রযুক্ত লব্ধি বল, সময় t এর সমানুপাতিক। কণাটির গতিশক্তি নিচের কোনটির সমানুপাতিক হবে? (A particle starts from rest at t = 0. The net force acting on the particle is proportional to time t. Its kinetic energy is proportional to which one of the following?)
A t2
B t3
C t
D t4
The kinetic energy per kg molecule of any gas at absolute temperature T is equal to (where Ru = Universal gas constant)
A Ru × T
B 1.5 Ru × T
C 2 Ru × T
D 3 Ru × T
Wavelength corresponding to the maximum energy is inversely proportional to the absolute temperature. This is __________ law.
A Stefan's
B Dalton's
C Wien's
D Kirchoffs
According to kinetic theory of gases, the absolute zero temperature is attained when
A Volume of the gas is zero
B Pressure of the gas is zero
C Kinetic energy of the molecules is zero
D Specific heat of gas is zero
For a perfect gas, according to Boyle’s law (where p = Absolute pressure, v = Volume and T = Absolute temperature)
A $$\frac{{\text{v}}}{{\text{T}}}$$ = constant, if p is kept constant
B pv = constant, if T is kept constant
C $$\frac{{\text{T}}}{{\text{p}}}$$ = constant, if v is kept constant
D $$\frac{{\text{p}}}{{\text{T}}}$$ = constant, if v is kept constant
The absolute entropy for all crystalline substances at absolute zero temperature is
A Zero
B Negative
C More than zero
D Indeterminate
The pressure exerted by an ideal gas is ________ of the kinetic energy of all the molecules contained in a unit volume of gas.
A One-third
B Three-forth
C One-half
D Two-third
The forces causing the vaporisation of liquid are derived from the Kinetic energy of translation of its molecules. The heat of vaporisation
A Increases with pressure rise
B Decreases with increasing pressure
C Becomes zero at the critical point
D Both B & C
According to kinetic theory of gases, the velocity of molecules __________ with the increase in temperature.
A Remains constant
B Increases
C Decreases
D None of these
The root mean square speed of molecules of a gas is equal to (where, m = mass of the molecule K = Boltzman's constant, T = absolute temperature)
A $$\sqrt {\frac{{2{\text{KT}}}}{{\text{m}}}} $$
B $$\sqrt {\frac{{3{\text{KT}}}}{{\text{m}}}} $$
C $$\sqrt {\frac{{6{\text{KT}}}}{{\text{m}}}} $$
D $$\frac{{3{\text{KT}}}}{{\text{m}}}$$

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