What is the total amount of heat needed to change 2.25 kg of silver at 0.0°C to 200.0°C? The specific heat of silver is 0.129 J/g·°C (2.25 kg = 2250 g)

Q = 5805 Joules.

Explanation:

Given the following data;

Mass = 2250g

Specific heat capacity of silver = 0.129 J/g·°C

Initial temperature, T1 = 0.0°C

Final temperature, T2 = 200.0°C

To find the quantity of heat needed;

Heat capacity is given by the formula;

Where;

dt = T2 - T1

dt = 200 - 0

dt = 200°C

Substituting the values into the equation, we have;

Q = 5805 Joules.

Therefore, the amount of heat needed is 5805 Joules.

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante