2022

(a) -√γ  ΔV/V                               (b) -ΔV/V (c)  ...

(a)  –166 J                                        (b)  166 J (c)   –168 J                       ...

(a)  Temperature (b)  Pressure (c)   Heat (d)  Temperature and pressure Explanation-(c)           In adiabatic process, no heat transfers between system and...

V1 is completely changed into a gas of volume V2 at a constant external pressure P and temperature T. If...

(a)  540 ml                               (b)  350 ml (c)   280 ml                               (d)  135 ml Answer-c (20)

Vo at 27°C. It is heated at constant pressure so that its volume becomes 2Vo. The final temperature is (a) 54°C ...

2×10-3 m3 to 3.34 m3. The work done by the system is about (a)  – 340 kJ                             (b)  – 170...

0.25m3 at constant pressure 103 N/m2 , the work done is (a)  2.5 ergs                              (b)  250 J (c)   250 W                               ...

(R = 2 cal mol–1 oC–1) (a)  54 cal                                 (b)  600 cal (c)   60 cal                                 (d)  546 cal Answer-c...

(a) 2×104  joules                    (b) 2×100  joules (c) 2×105×100  joules          (d) 2×10–5×100 joules Answer-a (11)

50 N/m2  from a volume of 10m3 to a volume of 4m3 . Energy of 100 J then added to the...

(a) 2V/273                                   (b) V/91...

(a)  The work is done by the gas (b)  Internal energy of the gas increases (c)   Both (a) and (b)...

V1 to V2. The work done by the gas is (a) P(V2-V1)                 ...

2.1×105N/m2. What will be its isothermal modulus of elasticity[(Cp/Cv)=1.4] (a)  1.8×105N/m2               (b) 1.5×105N/m2 (c) ...

(a)  Zero                                    (b)  100J (c)   – 50J                                  (d)  50J Answer-d (11)

(a) 350×40.4  K                       (b) 300×40.4 K (c) 150×40.4  K                       (d) ...

(a)   1 : 16                                         (b)  1 : 8 (c)   1 : 4                 ...

(a)  Lesss than P                      (b)  More than P (c)   P                                         (d)  Either (a) or (c) Answer-b (9)

(a) ΔU=-W  in an adiabatic process (b) ΔU=W  in an isothermal process (c) ΔU=-W  in an isothermal process (d) ΔU=W...

(a)  Adiabatic expansion         (b)  Adiabatic compression (c)   Isothermal expansion      (d)  Isothermal compression Answer-b (5)

105 N/m2 . On suddenly pressing the piston the volume is reduced to half the initial volume. The final pressure...

(a)  273 K                                 (b)  573 K (c)   373 K                                 (d)  473 K Answer-a (9)

(a) (T+2.4)K                        (b) (T-2.4)K (c)  (T+4)K        ...

(a)  Its pressure increases (b)  Its temperature falls (c)   Its density increases (d)  Its thermal energy increases Answer-b   (5)

Cp/Cv for the gas is (a)   3/2                           ...

(P1,V1,T1) to (P2,V2,T2) . Which of the following relation is correct (a) T1V1γ-1=T2V2γ-1               (b)...

(a) P‘=P                                (b) P‘=2P (c)...

  (a) 27.5°C                             (b) 75°K (c)  150K ...

(a) 627°C                               (b) 527°C (c) 427°C ...

  (a)  Adiabatic process             (b)  Isothermal process (c)   Isobaric process                (d)  Isochoric process Answer-a (4)

(a)  420K                                   (b) 327°C...

(a) -2767.23 J                       (b) 2767.23 J (c)  2500J     ...

(a)  Isochoric                            (b)  Isobaric (c)   Isothermal                         (d)  Adiabatic Answer-(d)          In adiabatic process, no transfer of heat takes place between system...