# What is the temperature of a substance?

## What is the temperature of a substance?

kinetic energy
In chemistry, we define the temperature of a substance as the average kinetic energy of all the atoms or molecules of that substance. Not all of the particles of a substance have the same kinetic energy.

### What does temperature of a substance indicate?

Temperature is a measure of the average kinetic energy of the particles of a substance. The higher the temperature of an object, the higher is its kinetic energy.

What is temperature most related to in a substance?

The Kelvin temperature of a substance is directly proportional to the average kinetic energy of the particles of the substance. For example, the particles in a sample of hydrogen gas at 200 K have twice the average kinetic energy as the particles in a hydrogen sample at 100 K.

What is the specific heat of a substance?

Specific heat, the quantity of heat required to raise the temperature of one gram of a substance by one Celsius degree. The units of specific heat are usually calories or joules per gram per Celsius degree. For example, the specific heat of water is 1 calorie (or 4,186 joules) per gram per Celsius degree.

## Does the temperature of a substance depend on how much of the substance is present?

Temperature is a measure of the average heat or thermal energy of the particles in a substance. Since it is an average measurement, it does not depend on the number of particles in an object. In that sense it does not depend on the size of it.

### What does temperature of a substance indicate Class 7?

Temperature indicates the level of thermal energy but it does not tell how much energy is present in the substance.

Does the temperature of a substance depends on how much of the substance is present?

What is the specific heat of a substance answers?

The specific heat of a substance is the amount of energy required to raise the temperature of 1 gram of the substance by 1°C.

## Why do we need to study specific heat?

Explanation: Specific heat capacity is a measure of the amount of heat energy required to change the temperature of 1 kg of a material by 1 K. Hence it is important as it will give an indication of how much energy will be required to heat or cool an object of a given mass by a given amount.

### Does temperature depend on size of sample?

This distinction is expressed by saying that temperature is an intensive property, a property independent of the size of the sample; whereas energy content is an extensive property, a property that does depend on the size of the sample.

What is the difference of temperature and heat?

Whats the difference? Heat describes the transfer of thermal energy between molecules within a system and is measured in Joules. Temperature describes the average kinetic energy of molecules within a material or system and is measured in Celsius (°C), Kelvin(K), Fahrenheit (°F), or Rankine (R).