Solved papers for NEET Physics Kinetic Theory of Gases NEET PYQ-Kinetic Theory Of Gases

done NEET PYQ-Kinetic Theory Of Gases Total Questions - 19

• question_answer1) The degrees of freedom of a molecule of a tridiatomic gas are:                     [AIPMT 1999]
  A)
   2   
  done clear
  B)
                                4        
  done clear
  C)
   6        
  done clear
  D)
                    None of these
  done clear
  View Answer play_arrow

• question_answer2) A gas is formed of molecules each molecule possessing \[f\] degrees of freedom, then the value of \[\gamma =\frac{{{C}_{P}}}{{{C}_{V}}}\] is equal to:                                                            [AIPMT 2000]
  A)
   \[\frac{2}{f}\]  
  done clear
  B)
                    \[1+\frac{2}{f}\]

  done clear C)  \[1+\frac{f}{2}\] done clear D)                   \[f+\frac{1}{2}\] done clear View Answer play_arrow question_answer3) The gases carbon-monoxide (CO) and nitrogen at the same temperature have kinetic energies \[{{E}_{1}}\] and \[{{E}_{2}}\] respectively. Then:                                                                                      [AIPMT 2000] A)  \[{{E}_{1}}={{E}_{2}}\] done clear B)                   \[{{E}_{1}}>{{E}_{2}}\] done clear C)  \[{{E}_{1}}<{{E}_{2}}\]        done clear D)  \[{{E}_{1}}\] and \[{{E}_{2}}\] cannot be compared done clear View Answer play_arrow question_answer4) The equation of state for 5g of oxygen at a pressure P and temperature T, when occupying a volume V, will be:                                                                                                                               [AIPMT (S) 2004] A)  \[PV=(3/32)RT\] done clear B)       \[PV=5RT\] done clear C)  \[PV=\frac{5}{32}RT\] done clear D)                   \[PV=(5/16)RT\] done clear View Answer play_arrow question_answer5) The molar specific heat at constant pressure of an ideal gas is (7/2)R. The ratio of specific heat at constant pressure to that at constant volume is: [AIPMT (S) 2006] A)  7/5       done clear B)       8/7 done clear C)                   5/7                               done clear D)  9/7 done clear View Answer play_arrow question_answer6) At \[10{}^\circ C\] the value of the density of a fixed mass of an ideal gas divided by its pressure is x. At \[110{}^\circ C\] this ratio is                                                                                          [AIPMPT (S) 2008]                                   A)  x          done clear B)                   \[\frac{383}{283}x\] done clear C)  \[\frac{10}{110}x\]       done clear D)       \[\frac{283}{383}x\] done clear View Answer play_arrow question_answer7) If \[{{C}_{p}}\] and \[{{C}_{v}}\]  denote the specific heats (per unit mass) of an ideal gas of molecular weight M where R is the molar gas constant.                                                                                        [AIPMT (M) 2010] A)  \[{{C}_{p}}-{{C}_{v}}=\frac{R}{{{M}^{2}}}\]         done clear B)  \[{{C}_{p}}-{{C}_{v}}=R\] done clear C)  \[{{C}_{p}}-{{C}_{v}}=\frac{R}{M}\] done clear D)       \[{{C}_{p}}-{{C}_{v}}=MR\] done clear View Answer play_arrow question_answer8) Liquid oxygen at 50 K is heated to 300 K at constant pressure of 1 atm. The rate of heating is constant. Which one of the following graphs represents the variation of temperature with time?                            [AIPMT (S) 2012] A)                                     done clear B)   done clear C)                                     done clear D)   done clear View Answer play_arrow question_answer9) The molar specific heats of an ideal gas at constant pressure and volume are denoted by  \[{{C}_{p}}\] and \[{{C}_{V}}\] respectively. If \[\gamma =\frac{{{C}_{p}}}{{{C}_{V}}}\] and R is the universal gas constant, then \[{{C}_{V}}\] is equal to                                                                                                                                 [NEET 2013] A)  \[\frac{1+\gamma }{1-\gamma }\]          done clear B)       \[\frac{R}{(\gamma -1)}\] done clear C)  \[\frac{(\gamma -1)}{R}\]           done clear D)       \[\gamma R\] done clear View Answer play_arrow question_answer10) The amount of heat energy required to raise the temperature of 1 g of helium at NTP, from \[{{T}_{1}}K\] to \[{{T}_{2}}K\] is                                                                                                                                   [NEET 2013] A)  \[\frac{3}{8}{{N}_{a}}{{K}_{B}}({{T}_{2}}-{{T}_{1}})\] done clear B)       \[\frac{3}{2}{{N}_{a}}{{K}_{B}}({{T}_{2}}-{{T}_{1}})\] done clear C)  \[\frac{3}{4}{{N}_{a}}{{K}_{B}}({{T}_{2}}-{{T}_{1}})\] done clear D)       \[\frac{3}{4}{{N}_{a}}{{K}_{B}}\left( \frac{{{T}_{2}}}{{{T}_{1}}} \right)\] done clear View Answer play_arrow question_answer11) The mean free path of molecules of a gas, (radius r) is inversely proportional to                       [NEET 2014] A)  \[{{r}^{3}}\]                           done clear B)  \[{{r}^{2}}\] done clear C)  r                      done clear D)       4 r done clear View Answer play_arrow question_answer12) Two vessels separately contain two ideal gases A and B at the same temperature, the pressure of A being twice that of B. Under such conditions, the density of A is found to be 1.5 times the density of B. The ratio of molecular weight of A and B is [NEET (Re) 2015] A)  \[\frac{2}{3}\]              done clear B)       \[\frac{3}{4}\] done clear C)  2                     done clear D)       \[\frac{1}{2}\] done clear View Answer play_arrow question_answer13) The ratio of the specific heats  \[\frac{{{C}_{p}}}{{{C}_{v}}}=\gamma \] in terms of degrees of freedom (n) is given by                                                                                                      [NEET  2015] A)  \[\left( 1+\frac{1}{n} \right)\]      done clear B)       \[\left( 1+\frac{n}{3} \right)\] done clear C)  \[\left( 1+\frac{2}{n} \right)\]      done clear D)       \[\left( 1+\frac{2}{n} \right)\] done clear View Answer play_arrow question_answer14) The molecules of a given mass of a gas have r.m.s. velocity of \[200\,\,m{{s}^{-1}}\] at \[27{{\,}^{o}}C\] and \[1.0\times {{10}^{5}}\,N{{m}^{-2}}\] pressure. When the temperature and pressure of the gas are respectively, \[127{{\,}^{o}}C\] and \[0.05\times {{10}^{5}}\,N{{m}^{-2}},\] the r.m.s. velocity of its molecules in \[m{{s}^{1}}\] is :                                                                                                                                [NEET - 2016] A)  \[100\sqrt{2}\]   done clear B)       \[\frac{400}{\sqrt{3}}\] done clear C)  \[\frac{100\sqrt{2}}{3}\]            done clear D)       \[\frac{100}{3}\] done clear View Answer play_arrow question_answer15)             At what temperature will the rms speed of oxygen molecules become just sufficient for escaping from the Earth's atmosphere? (Given :                                    [NEET - 2018] Mass of oxygen molecule \[\text{(m)=2}\text{.76 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{--26}}}\text{kg}\] Boltzmann's constant \[{{\text{k}}_{\text{B}}}\text{=1}\text{.38 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{--23}}}\text{J}{{\text{K}}^{\text{--1}}}\text{)}\] A)  \[\text{5}\text{.016 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{4}}}\text{ K}\] done clear B)       \[\text{8}\text{.360 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{4}}}\text{ K}\] done clear C)  \[\text{2}\text{.508 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{4}}}\text{ K}\] done clear D)       \[\text{1}\text{.254 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{4}}}\text{ K}\] done clear View Answer play_arrow question_answer16) Increase in temperature of a gas filled in a container would lead to-                                                     [NEET 2019] A)  Decrease in its pressure done clear B)  Decrease in intermolecular distance done clear C)  Increase in its mass done clear D)  Increase in its kinetic energy done clear View Answer play_arrow question_answer17) A cylinder contains hydrogen gas at pressure of 249 kPa and temperature \[27{}^\circ C\].                 [NEET 2020] Its density is : \[(R=8.3\text{ }J\text{ }mo{{l}^{1}}\text{ }{{K}^{1}})\] A)  \[0.2\text{ }kg/{{m}^{3}}\]      done clear B)       \[0.1\text{ }kg/{{m}^{3}}\] done clear C)  \[0.02\text{ }kg/{{m}^{3}}\]    done clear D)       \[0.5\text{ }kg/{{m}^{3}}\] done clear View Answer play_arrow question_answer18) The mean free path for a gas, with molecular diameter d and number density n can be expressed as:     [NEET 2020] A)  \[\frac{1}{\sqrt{2}n\pi {{d}^{2}}}\]     done clear B)       \[\frac{1}{\sqrt{2}{{n}^{2}}\pi {{d}^{2}}}\] done clear C)  \[\frac{1}{\sqrt{2}{{n}^{2}}{{\pi }^{2}}{{d}^{2}}}\]          done clear D)       \[\frac{1}{\sqrt{2}n\pi d}\]         done clear View Answer play_arrow question_answer19) The average thermal energy for a mono-atomic gas is : (\[{{k}_{B}}\]is Boltzmann constant and T, absolute temperature)                                                                                                                   [NEET 2020] A)  \[\frac{3}{2}{{k}_{B}}T\]        done clear B)       \[\frac{5}{2}{{k}_{B}}T\] done clear C)  \[\frac{7}{2}{{k}_{B}}T\]        done clear D)       \[\frac{1}{2}{{k}_{B}}T\] done clear View Answer play_arrow Study Package NEET PYQ-Kinetic Theory Of Gases   Buy Now     Please Wait you are being redirected.... 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