EWT | Academic Question

Questions
Question (1)
QN0038397

An ideal gas goes through a reversible cycle  has the  -  diagram shown below. Process  and  are adiabatic.

 

The corresponding  diagram for the process is         

  • (A)
  • (B)
  • (C)
  • (D)

Correct Answer: B
Explanation:

In  graph ab-process : Isobaric, temperature increases.

bc process : Adiabatic, pressure decreases.

cd process : Isobaric, volume decreases.

da process : Adiabatic, pressure increases.
The above processes correctly represented in  diagram (b).

Link:
Report Error
Question (2)
QN0038398

A sample of gas expands from volume  to . The amount of work done by the gas is greatest when the expansion is

  • (A)

    isothermal

  • (B)

    adiabatic

  • (C)

    isobaric

  • (D)

    equal in all cases

Correct Answer: A
Explanation:

Link:
Report Error
Question (3)
QN0038399

Choose the incorrect statement related to an isobaric process.

  • (A)

    constant

  • (B)

  • (C)

    Heat given to a system is used up in raising the temperature only.

  • (D)

Correct Answer: C
Explanation:

Link:
Report Error
Question (4)
QN0038400

A monoatomic gas at pressure  and volume  is suddenly compressed to one eights of its original volume. The final pressure at constant entropy will be :

  • (A)

  • (B)

  • (C)

  • (D)

Correct Answer: C
Explanation:

For monoatomic gas,

For an adiabatic process,  constant

For an adiabatic process,

Link:
Report Error
Question (5)
QN0038401

During isothermal expansion, the slope of  graph

  • (A)

    decreases

  • (B)

    increases

  • (C)

    remains same

  • (D)

    may increase or decrease

Correct Answer: A
Explanation:

Link:
Report Error
Question (6)
QN0038402

When heat is given to a gas in an isothermal change, the result will be

  • (A)

    external work done

  • (B)

    rise in temperature

  • (C)

    increase in internal energy

  • (D)

    external work done and also rise in temperature

Correct Answer: A
Explanation:

Link:
Report Error
Question (7)
QN0038403

If and  are specific heat capacities at constant pressure and constant volume respectively, then 

for an adiabatic process of an ideal gas 

  • (A)

    constant

  • (B)

    constant

  • (C)

    constant

  • (D)

    constant

Correct Answer: C
Explanation:

For an adiabatic process of an ideal gas.

const where

Link:
Report Error
Question (8)
QN0038404

The work done in an adiabatic change in a particular gas depends only upon

  • (A)

    change in volume

  • (B)

    change in temperature

  • (C)

    change in pressure

  • (D)

    None of these

Correct Answer: B
Explanation:

 In adiabatic process, no heat is taken or given by the system i.e.,

If  is negative (work done on system), then  increases & temperature increases and vice-versa. So work done in adiabatic change in particular gas (ideal gas) depends on change in temperature.

Link:
Report Error
Question (9)
QN0038405

Which one of the following is an isoentropic process?

  • (A)

    Isothermal

  • (B)

    Adiabatic

  • (C)

     Isochoric

  • (D)

    Isobaric

Correct Answer: A
Explanation:

Link:
Report Error
Question (10)
QN0038406

Which of the following processes is adiabatic ?   

  • (A)

    Melting of ice

  • (B)

    Bursting of tyre

  • (C)

    Motion of piston of an engine with constant speed

  • (D)

    None of these

Correct Answer: B
Explanation:

Link:
Report Error
Excel With Tutors

Learn At Your Own Pace... Because, Everyone's Pace of Learning is Different...

ExcelWithTutors

A unit of Innovexcel Edu Solution LLP.

SWIFT, RELIABLE & CONVENIENT..


Social Media

Corporate Office :
Bharat Impact Building, C-26, Sector - 59, Noida, Uttar Pradesh - 201301, India

Excel With Tutors : A Perfect Tutoring Platform & Repository of Learning Materials. Matches the Best Tutor as Per Your Requirement.


© 2025 | ©Innovexcel Edu Solution LLP. All Rights Reserved.

Technology Partner: Indev Consultancy Pvt Ltd

Find a Tutor Join as Tutor