NEW
Font size
Worksheets2nd Law of Thermodynamics
Total questions: 20
Worksheet time: 5mins
Many thermodynamic processes in nature occurs in one direction but not the opposite
True
False
Maybe
I do not know
Heat flow from a cool body to a hot body would not violate the 1st Law, energy would be still conserved
True
False
Maybe
Sometimes
During adiabatic, internally reversible process, what is true about the change in entropy?
it is temperature dependent
it is always greater than zero
it is always zero
it is always less than zero
What is the difference between adiabatic process and isentropic process?
Adiabatic: heat transfer is not equal to zero
Isentropic: heat transfer is zero
Both: heat transfer = 0
Isentropic : reversible
Both: heat transfer is not equal to zero
Isentropic: irreversible
Adiabatic: heat transfer = 0
Isentropic: heat transfer not equal to zero
For a heat engine operating between two temperatures (T2 > T1), what is the maximum efficiency attainable?
1 - (T1/T2)
1 - (T2/T1)
T1 - T2
1 - (T12/T2)
What is the value of work done for a closed, reversible, isometric system?
zero
positive
negative
+ / -
A refrigerator is
A heat engine
An air cooler
An electric motor
A heat engine working in the reverse order
