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Syllabus

(1) (T + 2.4) K

(2) (T – 2.4) K

(3) (T + 4) K

(4) (T – 4) K

Q. Two moles of oxygen gas undergoes a process given by P = $\frac{4}{1+{\left({\displaystyle \frac{V}{2}}\right)}^{2}}$ where P is pressure (Pa) and V is volume (${m}^{3}$). Find out the rms speed of gas molecule, when volume of gas becomes 4 ${m}^{3}$.

(1) 5$\sqrt{6}$ m/s

(2) 4$\sqrt{12}$ m/s

(3) 12 m/s

(4) 11.5 m/s

(1) 2000$\xb0$C

(2) 1727$\xb0$C

(3) 1000$\xb0$C

(4) 727$\xb0$C

a)700m

b)7m

c)70km

d)700km

Q. A diatomic gas undergoes a process given by the equation P = KV where K is a constant. The molar specific heat of the gas for the process is

(1) R

(2) $\frac{5R}{2}$

(3) 4 R

(4) 3 R

Q. In an isothermal process 30 joule of work is performed by gas, the amount of heat supplied to the gas is

(1) 30 J

(2) - 30 J

(3) 15 J

(4) 60 J

what is an organ pipe ? describe the various mode of vibration in an open organ pipe .

and what type of question ask by cbse examiner on this topic

select incorrect statement about the molar

specific heat of a gaseous system

(1) Specific heat in an adiabatic process, C

_{a}= 0(2) Specific heat in an isothermal process, ${C}_{i}=\infty $

(3) Specific heat in an isobaric process, Cp = $\frac{\gamma R}{\gamma -1}$

(4) Specific heat in an isochoric process, C

_{v}= $\frac{R}{\gamma}$^{23}atoms. Specific heat of aluminium = 0.22.[

Answer : 4.158*10]^{-16}ergNO LINKS PLEASE^{-}4m .s^{-1}velocity . After collision they combine with each other . Find out the heat produced as a result of this collision . Mechanical equivalent of heat =4.2 j. cal^{-1}.[Answer ; 2.86 cal

^{}. ]NO LINKS PLEASEat constant volume and constant pressure ?He,Gamma of He = 1.667,R = 8.318 * 10^{7 }erg. mol^{-1}.^{o}C^{-1}andJ = 4.18 * 10^{7}erg.cal^{-1}.molecular mass of He = 4[

Answer :]c_{v }= 0.746 cal/g/^{o}C ; C_{p}= 1.243 cal/ g/^{o}CNO LINKS PLEASE