The quantity of heat required to change an object's temperature exactly 1 degree Celsius depends on the mass and specific heat capacity of the object. Specific heat capacity is a measure of an object's ability to store thermal energy. Different materials have different specific heat capacities, which means that they require different amounts of heat to raise their temperature by the same amount.

The formula for calculating the quantity of heat required to change an object's temperature is:

Q = mcΔT

Where:

* Q is the quantity of heat in joules (J)

* m is the mass of the object in kilograms (kg)

* c is the specific heat capacity of the object in joules per kilogram-kelvin (J/kg-K)

* ΔT is the change in temperature in kelvins (K)

For example, if you want to raise the temperature of 1 kilogram of water by 1 degree Celsius, you would need to add 4184 joules of heat. This is because the specific heat capacity of water is 4184 J/kg-K.

Different materials have different specific heat capacities. Here are some common materials and their specific heat capacities:

* Water: 4184 J/kg-K

* Aluminum: 897 J/kg-K

* Copper: 385 J/kg-K

* Iron: 449 J/kg-K

* Wood: 1700 J/kg-K

As you can see, water has a relatively high specific heat capacity, which means that it takes a lot of heat to raise its temperature. This is why water is often used as a coolant in engines and other devices that generate heat.