The system where there is only energy exchange and not matter is determined:

The system where there is no exchange of matter or energy is called:

The boundaries where the system remains constant are called:

The borders that allow the exchange of work and energy with your neighborhood are called:

The thermodynamic properties that depend on the size of the system are called:

An open system is one in which

Which of the following is an intensive property of a thermodynamics systems?

Which of the following is the basis of temperature measurement?

The absolute zero pressure will be

The standard fixed point of the thermometry is the

A definite area or space where some thermodynamic process takes place is known as

An open system is one in which

An isolated system

An isolated system

In an extensive property of a thermodynamic system

Which of the following is the extensive property of a thermodynamic system ?

When two bodies are in thermal equilibrium with a third body they are also in thermal equilibrium witheach other. This statement is called

The temperature at which the volume of a gas becomes zero is called

The absolute zero pressure will be

Absolute zero temperature is taken as

The heating and expanding of a gas is called

A series of operations, which take place in a certain order and restore the initial condition is known as

In an irreversible process, there is a

When the molecules of a substance vibrate faster, the

When a cold object is placed beside a hot one, heat flow is from

Which of these is not synonymous with thermal agitation?

In which of these substances would the molecules vibrate fastest when exposed to same heat energy ?

Which of these is not a consequence of increase of heat energy?

Change of state from ice to water is an example of the application of

Which of these has the molecules expand most at same heat energy ?

Change of state from steam to water is called

Fusion is change of state from

On which of the following is the design of the thermostat of an electric iron based?

In which of the following is the expansion of solids a disadvantage?

A metal lid fits tightly on a glass jar.

Which process makes it easier to remove the lid from the jar?

A wooden wheel can be strengthened by putting a tight circle of iron around it.

Which action would make it easier to fit the circle over the wood?

At a constant temperature, a solid has a fixed shape and a fixed volume.

Which row describes the shape and the volume of a liquid at constant temperature?

A long thin bar of copper is heated evenly along its length. What happens to the bar?

An engineer wants to fix a steel washer on to a steel rod. The rod is just too big to fit into the hole of the washer. How can the engineer fit the washer onto the rod ?

A glass jug is designed so that it does not break when boiling water is poured into it. What sort of glass should be used?

The diagrams show a bimetallic strip when it is at room temperature and after it has been cooled.

The change in shape occurs because

A person cannot unscrew the lid of a pot of jam. He finds that the lid can be unscrewed after it has been held under hot, running water for a few seconds. Why is this?

Weather Patterns

Feet on Hot Sand

Heat Lamps

Microwaving Food

Physical quantity that expresses the hotness or coldness of an object or a system. It is a measure of the average kinetic energy of the particles that make up the object or system.

Is defined as the force exerted by the molecules of a matter on the walls of the container in which it is contained. The pressure is proportional to the average kinetic energy of the molecules and their number density.

Is defined as the total space occupied by the total amount of molecules. Is a measure of the physical size of the container in which the matter is contained.

Scale of temperature that was originally defined by setting 0 (zero) as the temperature at which water freezes and 100 as the temperature at which water boils at sea level atmospheric pressure.

On this scale, a scientist used a mixture of ice, water, and ammonium chloride to define his zero value, then assigned a temperature of 96 to the human body temperature, which he measured using a thermometer placed under his arm.

Defined his temperature scale (SI unit of temperature) based on the concept of thermodynamic temperature. He used the idea of an "absolute zero" temperature, which is the temperature at which all molecular motion stops.

Is the tendency of materials to change in volume, length, or shape in response to a change in temperature. When materials are heated, their particles begin to move more quickly and occupy a larger space, leading to an increase in volume or length.

Is defined as the transfer of energy from a hotter object to a colder object, resulting in a temperature change.

It refers to the amount of heat energy required to change the state of a substance without changing its temperature. During a phase change, the energy added or removed from the substance goes towards breaking or forming intermolecular bonds between the molecules rather than increasing or decreasing the kinetic energy of the substance.

Is the heat transfer associated with a change in temperature of a substance without any phase change. In other words, it is the heat transferred when the temperature of a substance changes, but it remains in the same phase.

Transfer mechanism of heat between objects in direct contact, such as a metal spoon placed in a hot cup of coffee. In this process, heat is transferred from the hotter object to the cooler one by the transfer of kinetic energy between the molecules of the objects.

Transfer mechanism of heat through the motion of fluids, such as air or water. When a fluid is heated, its density decreases and it rises, while cooler, denser fluid sinks. This creates a “circular” motion which transfers heat from one location to another.

Transfer mechanism of heat through electromagnetic waves, such as the heat we feel from the sun or a fire. In this process, heat energy is emitted from a hotter object in the form of electromagnetic waves and is absorbed by cooler objects. Does not require a medium to transfer heat and can occur through a vacuum.

This law of thermodynamics states that if two objects are in thermal equilibrium with a third object, then they are in thermal equilibrium with each other. This means that if you touch two objects and they feel the same temperature, and each of these objects is also in thermal equilibrium with a third object, then all three objects are at the same temperature.

This law of thermodynamics states that energy cannot be created or destroyed, only transferred, or transformed. This means that the total amount of energy in a system remains constant, even if the energy is transferred from one object to another or transformed into a different form of energy.

This law of thermodynamics states that in any energy transfer or transformation, the total entropy of a closed system always increases over time. This means that energy tends to spread out and become more disordered over time, and that it is impossible to convert all heat energy into work without some of it being lost as waste heat.

25 °C in kelvins

What does R stand for

Which of the following equations represents the Ideal Gas Law?

The 1st law of Thermodynamics

1200 J of heat are added to a sample of gas while 400 J of work is done by the gas. What is the change in internal energy of the gas?

500 J of energy is applied to a gas, if 200J of work is done by the gas. What is the change of internal energy in calories?

The internal energy of a system decreases by 40cal. What work is done by the gas, if the system absorbs 150J of heat?

The internal energy of a system increases by 50cal while 350J of work is done by a gas. Determine the change in heat .

if 600J of heat is needed to increase the internal energy from 15cal to 45cal. What work will the system produce?

1234 J are how many calories

1234cal are how many joules

At what temperature would the Celsius and the Fahrenheit reading be the same?

Room temperature is often identified as 68℉. What temperature is this on the Kelvin scale?

Which temperature scale does not have a negative values?

Dry ice has a temperature of −110. 2℉. What would be its temperature in Celsius scale?

Before entering a mall, the security guard checks your temperature and it is

99.6℉. What is this in Celsius?

Which law states that if two systems or objects are in thermal equilibrium with a third system or object, then they are in thermal equilibrium with each other?

Two thermometers, one calibrated in the Celsius scale and the other one in the Fahrenheit scale, are used to measure the same temperature. What is the numerical reading on the Fahrenheit thermometer?

What is the value of absolute zero temperature?

What temperature scale is the Fahrenheit counterpart of the Kelvin scale?

The Zeroth Law of Thermodynamics deals with:

Is define as the collection of objects we examinate.

Do not allow heat to flow in and out

Represent environment surrounding the system (the rest of the universe)

Allow heat to flow in and out of the system

Many thermodynamic processes in nature occurs in one direction but not the opposite

Heat flow from a cool body to a hot body would not violate the 1st Law, energy would be still conserved

Which of the following is the best definition of entropy?