Which process will increase the temperature of the system without heating it?
Adiabatic compression
Isothermal compression
Adiabatic expansion
Isothermal expansion
Get Answer
The slopes of isothermal and adiabatic curves are related as
isothermal curve slope adiabatic curve slope
adiabatic curve slope isothermal curve slope
So slope to adiabatic curve is times of isothermal curve, as clear also from figure.
A mass of diatomic gas at a pressure of 2 atmospheres is compressed adiabatically so that its temperature rises from to . The pressure of the gas in final state is
For adiabatic process, constant
A diatomic gas initially at is compressed adiabatically to one eighth of its original volume. The temperature after compression will be
Initial temperature
Let Initial volume Final volume
According to adiabatic process, constant
According to question,
Following figure shows two processes and for a gas. If and are the amount of heat absorbed by the system in two cases, and and are changes in internal energies, respectively, then:
Internal energy depends only on initial and final state
So,
Also
As
Four curves and are drawn in the figure for a given amount of a gas. The curves which represent adiabatic and isothermal changes are
and respectively
Curve shows expansion. For expansion of a gas,
Slope of curve for isothermal change slope of curve for adiabatic change.
So, curve B shows isothermal change and curve shows adiabatic change.
An ideal gas is initially at is expanded to and then compressed adiabatically to the same volume and pressure . If is the net work done by the gas in complete process which of the following is true?
In the first process is + ve as is positive, in the second process is - ve as is - ve and area under the curve of second process is more
Net Work and also .
During an adiabatic process of an ideal gas, if is proportional to , then the ratio of specific heat capacities at constant pressure to that at constant volume for the gas is
1.5
0.25
0.75
0.4
As , So constant
( Process is adiabatic)
As we know,
The relation between and for an ideal gas in an adiabatic process is given by relation . Find the value of adiabatic exponent of this gas.
In adiabatic change,
or
where is the constant of integration.Comparing (i) and (ii), we get
.
During an adiabatic process an object does of work and its temperature decreases by . During another process it does of work and its temperature decreases by . Its heat capacity for process is
For adiabatic process,
which remains same for other processes also.
Let be the heat capacity of 2 nd process then
-(C)
General Knowledge
Academics Question Bank
PHYSICS
CHEMISTRY
BIOLOGY
MATHEMATICS
THE WORLD AROUND US
HISTORY
GEOGRAPHY
CIVICS
ECONOMICS
Physics
How - Why - What
NCERT Books (Class 1-12)
Learn At Your Own Pace... Because, Everyone's Pace of Learning is Different...
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