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Syllabus

(1) (T + 2.4) K

(2) (T – 2.4) K

(3) (T + 4) K

(4) (T – 4) K

(1) 2000$\xb0$C

(2) 1727$\xb0$C

(3) 1000$\xb0$C

(4) 727$\xb0$C

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

a)700m

b)7m

c)70km

d)700km

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

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

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 PLEASEQ. 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