when a substance undergoes fusion it

Experts are tested by Chegg as specialists in their subject area. The substance undergoes a change of phase.

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Complete the following statement.

. When a substance undergoes fusion it a Evaporates O b Freezes O c Condenses d Vaporizes e Sublimes. Mass defect in the reaction m 2 kg Velocity of light c 3 10 8 ms-1. For example water ice melts at 0oC whereas gold melts at 1.

Which one of the following properties causes the. In most substances changes in temperature or pressure result in a substance phase change. A phase change or transition occurs when a substance undergoes a change in state on a molecular level.

When a substance undergoes fusion it vaporizes. The substance has unusual thermal properties. C condenses.

The substance undergoes a change of phase. The substance must be a non-perfect solid. For any pure substance the temperature at which melting occurs known as the melting point is a characteristic of that substance.

Answer 1 of 2. This is the amount of energy needed to change the total interal energy ie enthalpy of a substance in order to produce the phase transition. The latent heat of fusion of a substance also accounts for the energy required to accommodate any increase in the volume of the substance post the change of its physical state.

A phase is a distinctive form of a substance and matter can change among the phases. A phase change or transition occurs when a substance undergoes a change in state on a molecular level. Complete the following statement.

Two cubes one silver and one iron have the same mass and temperature. Questo 2011 polnt Saved Complete the following statement. D vaporizes.

This is a different temperature for every substance. We review their content and use your feedback to keep the quality high. A freezes.

The temperature at which the substance undergoes the phase transition is called the melting point of the substance. 100 4 ratings Transcribed image text. This temperature point can also be referred to as the.

D vaporizes. It requires energy. When a substance undergoes a change of state it can use energy or give off energy.

Complete the following statement when a substance. The substance must be cooler than its environment. By Calia Roberts.

C condenses. Answer 1 of 3. Complete the following statement.

This preview shows page 6 - 8 out of 10 pages. In most substances changes in temperature or pressure result in a substance phase change. When a substance undergoes a phase changeChanges occur in the intermolecular forces of attraction and hence the intermolecular space.

A freezes. The opposite process a liquid becoming a solid is called solidification. The process of a solid becoming a liquid is called melting an older term that you may see sometimes is fusion.

B sublimes. There are several processes of phase changes including fusion solidification vaporization condensation sublimation and physical. When a substance undergoes fusion it.

A phase change or transition occurs when a substance undergoes a change in state on a molecular level. It may take extreme temperature pressure or energy but all matter can be changed. When a pure substance undergoes a chemical change it is no longer that same substance.

Which one of the following statements provides the best explanation for this observation. The change that occurs when a substance changes from a gas to a solid is referred to as. There are several processes of phase changes including fusion solidification vaporization condensation sublimation and physical vapor deposition.

The substance must be cooler than its environment. E evaporates. For example imagine we had water ice at -10 circ C and we wanted to convert.

There are several processes of phase changes including fusion solidification vaporization condensation sublimation and. A quantity Q of heat is removed from each cube. A substance changes from a solid to a liquid at the substances melting point.

The amount of energy necessary to produce sublimation is not too surprisingly called the enthalpy of sublimation. There is alway energy input to initiate phase change It can be positive as in change from water liquid to gas or negative - gas to liquid. Heat is added to a substance but its temperature does not rise.

A substances ability to resist being scratched is the physical property of matter known as. The substance must be a gas. In most substances changes in temperature or pressure result in a substance phase change.

It is defined as the quantity of a radioactive substance which undergoes 37 10 10 disintegrations in one second. For eg for the conversion of water into its vapour stateits molecules absorb heat energy and start moving more randomly and in more intense ma. There is one oddball - The enthalpy of fusion is almost always a positive quantity.

When a substance undergoes fusion it. B sublimes. Calculate the amount of energy released when a radioactive substance undergoes fusion and results in a mass defect of 2 kg.

A chemical change changes the identity of the substance.

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