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WorksheetsLa termodinamica
Total questions: 12
Worksheet time: 9mins
What's the zero principle of thermodynamics?
If two thermodynamic systems are each in thermal equilibrium with a third one, then the second might not be in in thermal equilibrium.
If two thermodynamic systems are each in thermal equilibrium with a third one, then the first might not be in in thermal equilibrium.
If two thermodynamic systems are each in thermal equilibrium with a third one, then they are in thermal equilibrium with each other.
If two thermodynamic systems are each in thermal equilibrium with a fourth one, then they are in thermal equilibrium with each other.
È possibile che un punto del piano di Clapeyron rappresenti due stati di equilibrio allo stesso campione di gas?
Sì, se si tratta di una mole di gas.
Sì, se il volume nei due stati è identico.
Sì, se la temperatura dei due stati è costante.
No, in nessun caso
È possibile creare una macchina che abbia rendimento 1?
Sì
No
Identify in which of the following types of energy transferred to your body is an heat transfer:
Basking in sunlight
Eating food
Riding an elevator to a higher floor
The ...... states that the state of entropy of the entire universe, as an isolated system, will always increase over time. The second law also states that the changes in the entropy in the universe can never be negative.
First Law of Thermodynamics
Second Law of Thermodynamics
Third Law of Thermodynamics
This might represent entropy
This might represent a explosive gas
This might represent a fighter jet
La formula del rendimento è:
η = 1-Qc/Qh
η = 1-Q/W
η = 1-P/T
Which formula describes the behaviour of the heat pump?
K=Q^2/W
Q=K-Q*V
Q/W=K
S=T-P
In which of the transformations is Q=0?
Adiabatic
Isothermal
Ciclic
Isochoric
Does the Second Law of Thermodynamics alter the conservation of energy principle?
Yes
No
Si consideri un recipiente contenente un gas perfetto. Inizialmente il volume del recipiente è V1 = 2 l e la pressione P1 = 10 bar; indichiamo inoltre la temperatura con T1. Il gas viene inizialmente scaldato alla temperatura T2 a volume costante; la pressione diventa P2 = 12 bar. Quindi viene diminuito il volume (volume finale V2) a pressione costante, riportando la temperatura a T1. Si calcoli: (a) il rapporto T2/T1; (b) il volume V2.
T2/T1 = 6,4; V2 = 1.7 l
T2/T1 = 1.2; V2 = 3.8 l
T2/T1 = 1.2; V2 = 1.7 l
T2/T1 = 3.8; V2 = 17,4 l
What is the definition of thermodynamics?
The energy available to do work
The study of the relationship between heat, work and energy
The amount of heat it takes to move an engine
The movement of heat
