Absolute zero is **the lowest temperature possible**. At a temperature of absolute zero there is no motion and no heat. Absolute zero occurs at a temperature of 0 degrees Kelvin

What does absolute 0 refer to?

Absolute zero, **temperature at which a thermodynamic system has the lowest energy**. It corresponds to −273.15 °C on the Celsius temperature scale and to −459.67 °F on the Fahrenheit temperature scale.

What is the best definition of absolute zero? : **a theoretical temperature characterized by complete absence of heat and motion and equivalent to exactly −273.15°C** or −459.67°F.

Why do they call it absolute zero?

Thermal motion is the driving mechanism behind temperature, so that temperature is also independent of frame. … This point, **where all the atoms have been completely stopped relative to each other**, is known as “absolute zero” and corresponds to the number zero on the Kelvin temperature scale.

## What is the definition of absolute zero quizlet?

Absolute zero is **the lowest possible temperature**. It is the point at which the atoms of a substance transmit no thermal energy – they are completely at rest. It is zero degrees on the Kelvin scale, which translates to -273.15 degrees Celsius or -459.67 degrees Fahrenheit.

## Does time stop at absolute zero?

But even if you take the conventional view of the flow of time, **motion does not stop at absolute zero**. This is because quantum systems exhibit zero point energy, so their energy remains non-zero even when the temperature is absolute zero.

## How did they find absolute zero?

The first, and simplest, demonstration of the existence of an ‘absolute zero’ temperature was found in **the behavior of gas pressure vs.** **temperature**. … It is the Kelvin temperature scale that defines its zero point as absolute zero, and is calculated by adding 273 degrees to the Centigrade temperature.

## What is an example of absolute zero?

Absolute zero is zero degrees Kelvin, equal to -273.15 degrees Celsius and -459.67 degrees Fahrenheit. The coldest known place in the universe is the **Boomerang Nebula**, where the temperature is -272° Celsius.

## What is the value of absolute zero class 11?

Absolute Zero is defined as minimum absolute temperature of an ideal gas. If we plot pressure versus temperature we get a straight line and if weextend theline backwards to the x-axis as shown in the graph below. The minimumtemperature is found to be **273.15 °C** (experimentally) andthis value is known as absolute zero.

## What is meant by absolute zero pressure?

Absolute pressure is the measure of pressure with respect to absolute zero pressure, which is **the pressure of a perfect vacuum**. The absolute pressure measurement is required for the ideal gas law in the same sense that temperature must be represented by its absolute unit, the Kelvin.

## Is 0 Kelvin possible?

Summary: On the absolute temperature scale, which is used by physicists and is also called the Kelvin scale, **it is not possible to go below zero** – at least not in the sense of getting colder than zero kelvin. … At zero kelvin (minus 273 degrees Celsius) the particles stop moving and all disorder disappears.

## Who discovered absolute zero?

In 1848, the **Scottish-Irish physicist William Thomson, better known as Lord Kelvin**, extended Amontons’ work, developing what he called an “absolute” temperature scale that would apply to all substances. He set absolute zero as 0 on his scale, getting rid of the unwieldy negative numbers.

## What is the hottest thing in the universe?

**The dead star at the center of the Red Spider Nebula** has a surface temperature of 250,000 degrees F, which is 25 times the temperature of the Sun’s surface. This white dwarf may, indeed, be the hottest object in the universe.

## What does zero Kelvin represent quizlet?

Zero on the Kelvin scale represents **-273 C** and is called absolute zero. Heat is thermal energy moving from a warmer object to a cooler object. The amount of energy required to raise the temperature of 1 kilogram of a material by 1 Kelvin.

## What is an absolute zero temperature?

Absolute zero is the lowest temperature possible. At a temperature of absolute zero there is no motion and no heat. Absolute zero occurs at a temperature of 0 degrees Kelvin, or -273.15 degrees Celsius, or at **-460 degrees Fahrenheit**.

## How do you determine the absolute zero temperature?

To solve for the value of absolute zero, use the equation for a line, **y = mx + b**. Absolute zero is the temperature at which the gas’s pressure equals zero. This is the line’s x-intercept. To calculate this value, set y = 0, substitute in the value of the slope, and solve for x.