## What is true about energy quizlet?

energy cannot be created or destroyed, but can be changed from on form to another. when energy is changed from one form to another, there is a loss of usable energy (heat).

## Which of the following statements about energy is false a reaction Cannot be exothermic overall if activation energy is required?

The answer is 1. A reaction cannot be exothermic overall if activation energy is required.

## Can energy be created or destroyed?

The law of conservation of energy states that energy can neither be created nor destroyed – only converted from one form of energy to another. This means that a system always has the same amount of energy, unless it’s added from the outside.

## Does total energy remain constant?

The total amount of energy and matter in the Universe remains constant, merely changing from one form to another. The First Law of Thermodynamics (Conservation) states that energy is always conserved, it cannot be created or destroyed. … In the process of energy transfer, some energy will dissipate as heat.

## Which of the following is not a common unit of energy?

Joule, Calorie, eV, Kilowatt hour; all are the units of energy. Watt is not the unit of energy.

## Which activity occurs without an input of cellular energy?

Which activity occurs without an input of cellular energy? three phosphate groups. cellular respiration.

## Which statements describes potential energy?

Potential energy can be described as the energy stored in an object that is at rest, and that could be used to accomplish some task. Kinetic energy is the energy of an object in motion. A boulder at the top of a cliff has potential energy that is converted into kinetic energy when it starts to roll downhill.

## Can conservation of energy be violated?

To sum it up, yes, conservation of energy can be violated, but nature makes sure it is always within the limits of uncertainty. In other words, the energy must be returned, and the books set straight pretty quickly.

## Who said energy Cannot be created or destroyed?

Albert Einstein
“Energy cannot be created or destroyed; it can only be changed from one form to another.” (Albert Einstein).

## What statement is true according to the kinetic theory?

Kinetic Molecular Theory states that gas particles are in constant motion and exhibit perfectly elastic collisions.

## What is the energy of an object because of its potential and kinetic energies quizlet?

Mechanical energy is energy associated with motion and position. Thermal energy is the total potential and kinetic energy of the particles in an object.

## Which equation shows the conservation of mechanical energy?

The mechanical energy does not equal zero. Think of it this way. The conservation of energy formula goes Ki+Ui=Kf+Uf. U is potential energy and K is kinetic energy.

## Which is an example of the kinetic molecular theory not holding true for a gas?

Which is an example of the kinetic-molecular theory not holding true for a gas? The attraction between particles causes a gas to condense at low temperatures.

## What change would occur in the kinetic energy of vapor if a container of vapor is placed at 0 Kelvin?

What change would occur in the kinetic energy of vapor if a container of vapor is placed at 0 Kelvin? The gas particles will have no kinetic energy.

## Under which conditions will a real gas behave most like an ideal gas?

Generally, a gas behaves more like an ideal gas at higher temperature and lower pressure, as the potential energy due to intermolecular forces becomes less significant compared with the particles’ kinetic energy, and the size of the molecules becomes less significant compared to the empty space between them.