ME121-Engineering Thermodynamics Questions with Correct Answers
10 views 0 purchase
Course
Power engineer
Institution
Power Engineer
System Correct Answer-rigid body bounded by certain boundaries
Surroundings Correct Answer-everything external to the system
Boundary Correct Answer-interface between the system and the environment
Closed system Correct Answer-always contains the same matter. Allows energy transfer but the...
ME121-Engineering Thermodynamics Questions with
Correct Answers
System Correct Answer-rigid body bounded by certain boundaries
Surroundings Correct Answer-everything external to the system
Boundary Correct Answer-interface between the system and the
environment
Closed system Correct Answer-always contains the same matter. Allows
energy transfer but there can be no transfer of mass across its boundary.
Open system Correct Answer-Allows both energy and mass transfer
Isolated system Correct Answer-It is a type of system which is not in
any way influenced by its surroundings.
Property Correct Answer-a macroscopic characteristic of a system such
as
mass, volume, energy, pressure, and temperature to which a numerical
value can be assigned
at a given time without knowledge of the previous behavior (history) of
the system.
,State Correct Answer-refers to the condition of a system as described by
its properties. can often be specified
by providing the values of a subset of the properties.
Process Correct Answer-When any of the properties of a system change,
the state changes and the system is said
to have undergone a _____________. It is a transformation from one
state to another.
Steady state Correct Answer-If a system exhibits the same values of its
properties at two different times, it is in the
same state at these times. A system is said to be at ________________ if
none of its properties
changes with time.
Transient Correct Answer-A response that unpredictable and changes
over time.
Cycle Correct Answer-When a system in a given initial state goes
through a number of different changes of state or processes and finally
returns to its initial state, the system has undergone what kind of
process?
Extensive property Correct Answer-Its value for an overall system is the
sum of its values for the parts into which the system is divided. a
property that changes when the size of the sample changes and it can
also change with time, e.g., mass, volume, energy
, Intensive property Correct Answer-values are independent of the
size/extent of the system; may vary from place to place within the
system at any moment, (maybe functions of both position and time) e.g.,
density, temperature, pressure, specific volume
Equilibrium Correct Answer-This refers to when a system has reached a
state where there is no spontaneous change over time.
True Correct Answer-True or False. A quantity is a property if its
change in values between two states is independent of the process.
Kelvin-Planck Statement Correct Answer-It is impossible for any device
that operates on a cycle to receive heat from a single reservoir and
produce a net amount of work.
Phase Correct Answer-refers to a quantity of matter that is homogeneous
(all solid, liquid or gas) throughout in both chemical
composition and physical structure.
False Correct Answer-True or false. A system cannot contain
one or more phases
Phase boundaries Correct Answer-In the phase diagram, it is the line
separating two different phases.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller cracker. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $16.49. You're not tied to anything after your purchase.
