Specific Heat Capacity

Question 1

What is temperature?

Answer 1

Temperature is a measure of how hot something is

Question 2

What is heat?

Answer 2

Heat is a measure of the thermal energy contained in an object

Question 3

Unit of heat?

Answer 3

Joules

Question 4

What 3 factors is the temperature rise of an object when heated dependent on?

Answer 4

Mass of object, amount of energy supplied to it, substance from which the object is made

Question 5

Units of specific heat capacity?

Answer 5

J/kgC

Question 6

Energy transferred formula?

Answer 6

Energy transferred (J) = Mass x Specific Heat Capacity x Change in temperature

Question 7

What is specific heat capacity?

Answer 7

SHC is the energy transferred to 1kg of the substance to raise its temperature by 1 degrees celsius

Question 8

Describe the relationship between specific heat capacity & temperature?

Answer 8

The lower the specific heat capacity, the higher the change in temperature

Question 9

Explain why the filling of a Greggs pastry is always hotter than the outer pastry?

Answer 9

The filling is hotter because it has a lower heat capacity than the outer pastry so It is easier to transfer the energy to 1kg of the substance to raise its temperature by 1C