A piston of 0.1m diameter expands over a
stroke of 0.2m under a constant gas pressure of 2 x 105 N/m2the
work done by the piston is:
0.1 मीटर व्यास का एक पिस्टन 2 x 105 N/m2 के निरंतर गैस दबाव के तहत 0.2 मीटर के स्ट्रोक में फैलता है, पिस्टन द्वारा किया गया कार्य है:
Which of the following
statement is INCORRECT?
निम्नलिखित में से कौन सा कथन गलत है?
Which of the following is true for the process 1 – 5 on temperature entropy plot?
तापमान एन्ट्रापी प्लॉट पर प्रक्रिया 1 - 5 के लिए निम्नलिखित में से कौन सा सत्य है?
A control volume is
What is the resultant of
sum of product of pressure and volume (p-V) with internal energy U known
as?
आंतरिक ऊर्जा U के साथ दबाव और आयतन (p-V) के उत्पाद के योग के परिणाम को क्या कहा जाता है?
The mechanical equivalent
of heat ‘J’ is equal to
ऊष्मा का यांत्रिक तुल्यांक 'J' के बराबर है
In isopiestic process, the
In a closed system
Modal specific heats of an
ideal gas depend on
For an isolated system which has no
interaction with the surrounding. Which of the following statement is/are
CORRECT?
Which of the following processes is irreversible process?
Which of the following processes
is irreversible process?
The polytrophic process on p-V diagram is represented by the figure.
In a throttling process, which one of
the following parameters remains constant?
Which below stated
statement is INCORRECT about a reservoir of heat?
The internal energy of a gas obeying
Vander Waals, equation (P+a/V2)
(V-b) =RT depends on its
Specific enthalpy is an ________of a system and its unit is ________ .
500 kJ/min heat is supplied to a heat
engine at 727o C. It rejects heat at 900 kJ/min at 223o C.
This type of engine is ________.
Centrifugal pump is an
example of
The heat transfer Q, the work done W and
the change in internal energy U are all zero in the case of
Which below stated
statement is TRUE about a reservoir of heat?
Which one of the following phenomenon
occurs when gas in a piston cylinder assembly expands reversibly at constant
pressure?
Which gas can attain the
highest efficiency for the same compression rise?
Compressed air coming out from a punctured
football ________.
Change in enthalpy of a
system is the heat supplied at
Isothermal compression
though most efficient, but is not practicable because
When a gas flows through a
very long pipe of uniform cross section, the flow is approximately
Which of the following parameters
remains constant during ideal throttling process
In
isothermal expansion, work done by gas depends upon ______.
Non Quasi-static process is
________ .
Work is considered to be a superior form
of energy as compared to heat energy because ________.
On a pressure volume diagram, the
process line PVn = C (as the value of ‘n’ increases) will ________.
The work required for compression in a
closed system increases when the value of ‘n’
(the index of compression) ________
Gibbs free energy is
considered at which one of the following condition?
For
a closed system, the difference between heat added to the system and work done
by the system, is equal to change in
In a throttling process, the following
thermodynamic property remains constant
During
throttling which thermodynamic property does not change?
Of
the following ‘path function’ quantity
is :
Which
of the following entities is not a thermodynamic property?
The work done in the expansion of a gas
from, volume V1 to V2 under constant pressure P is equal to:
Heat
and work are :
Change in enthalpy in a closed system is
equal to heat transferred if the reversible process takes place at constant:
Which
is true for reversible polytrophic process?
Work
done in an adiabatic process between a given pair of end states depends on
Properties of substances like pressure
temperature and density in thermodynamic coordinates are:
Define thermodynamics:
ऊष्मागतिकी को परिभाषित करें:
Which of the following is
NOT a unit of pressure?
निम्नलिखित में से कौन दाब की इकाई नहीं है?
Which of the following is
NOT an intensive property?
निम्नलिखित में से कौन सा तीव्रात्मक (इंटेंसिव ) गुण नहीं है?
If there is no change in pressure at any
point of the system with time, then the system is said to be in:
यदि समय के साथ सिस्टम के किसी भी बिंदु पर दबाव में कोई बदलाव नहीं होता है, तो सिस्टम को कहा जाता है:
Gibbs Phase rule defines the
relationship between degrees of freedom (F)
of a system, number of phases (P) and
the number of components (C). What is
the equation?
गिब्स चरण नियम एक प्रणाली की स्वतंत्रता की डिग्री (F ), फेज की संख्या (P ) और घटकों की संख्या (C ) के बीच संबंध को परिभाषित करता है। समीकरण क्या है?