Which of the following describes the characteristics of a material with a high heat capacity?1. It is a material that melts at a high temperature. 2. It is a material that changes temperature very...

Which of the following describes the characteristics of a material with a high heat capacity?

1. It is a material that melts at a high temperature.

2. It is a material that changes temperature very rapidly when heated.

3. It takes a lot of energy to change the temperature of the material.

4. It takes a very small temperature change to change the amount of heat in the material.

5. It is a material that rapidly cools, giving up its heat.

Asked on by kayla94

2 Answers | Add Yours

justaguide's profile pic

justaguide | College Teacher | (Level 2) Distinguished Educator

Posted on

The heat capacity of a material is the amount of heat required to increase the temperature of the material by one unit. If SI units are used, the heat capacity would be expressed in Joules/Kelvin.

There are several causes for a variation in heat capacity. These include the presence or absence of bonding between particles that make up the material, an example of which is hydrogen bonding; the degree of freedom of movement that the particles of the material have; the presence of impurities in the material, etc.

Materials with a high heat capacity require the addition of a lot of energy in the form of heat to change the temperature of the material.

The correct answer is option C.

salonigaba's profile pic

salonigaba | Student, Grade 11 | (Level 1) Salutatorian

Posted on

Hi,

the amount of energy or heat required to increase the temperature of 1 kg of water by 1°C is 4.186 J, but the amount of heat required to increase the temperature of 1 kg of copper by 1°C is only 387 J.

 

so we can say:

The heat capacity of a material is the amount of heat required to increase the temperature of the material by one unit.

SI unit:Joules/Kelvin.

Sources:

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