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WorksheetsPhysics2_Quiz2
Total questions: 25
Worksheet time: 12mins
It is equal to the work done by a force of one newton acting through one meter.
calorie
joule
heat
BTU
It refers to the sum of all the microscopic forms of energy of the constituent atoms and molecules of a system.
Potential Energy
Kinetic Energy
Heat
Internal energy
Is it possible to change the temperature of a system without the addition or removal of heat?
Yes
No
Sometimes
Maybe
The change in temperature is inversely proportional to the amount of work done.
True
False
Sometimes
Maybe
It is a process of measuring the amount of heat released or absorbed during a chemical reaction.
(a)
The heat required to change the temperature of a given mass of a pure substance is called?
(a)
It is the energy per unit mass required to change the temperature of a given substance by 1 C°.
(a)
Whenever heat is transferred into or out of a system, its temperature always changes.
True
False
Sometimes
Maybe
It is the product of its specific heat and molar mass
(a)
It refers to any change that a system undergoes from one equilibrium state to another.
thermodynamic system
thermodynamic process
First Law
Second Law
A thermodynamic system may exchange energy with its surroundings (environment) by means of heat,
work, or both.
True
False
Sometimes
Maybe
A positive value of W represents work done by the system against its surroundings, such as work done by an expanding gas, and corresponds to energy leaving the system.
True
False
Sometimes
Maybe
The first law of thermodynamics states that when heat Q is added to a system while the system does work W, the internal energy U changes by an amount equal to Q - W.
True
False
Sometimes
Maybe
The initial and final states of the system are identical. Thus, the change in internal energy must be zero.
(a)
The change in the energy of the system equal the net work done.
(a)
For expansion, work is negative
For compression, work is positive
Isochoric
Isothermal
Isobaric
Isolated
The second law of thermodynamics tells us that heat naturally flows from a cold object to a hot one.
True
False
Sometimes
Maybe
It is an idealized process in which the system is always in thermodynamic equilibrium with its surroundings.
(a)
Any device that transforms heat partly into work or mechanical energy is called?
(a)
The net work W done by a heat engine equals the net energy transferred by heat.
True
False
Sometimes
Maybe
It is impossible to construct a heat engine operating in a cycle that will produce an amount of work equal to the amount of input energy by heat.
True
False
Sometimes
Maybe
A device that transfers energy from a cold to hot reservoir is called?
(a)
It is a theoretical engine that operates in an ideal, reversible cycle and is the most efficient engine possible.
(a)
It is a state variable which measures the degree of disorder in a system.
(a)
The change in entropy in a reversible process is zero and greater than zero in an irreversible process.
True
False
Sometimes
Maybe
