The amount of heat released when 32g of water cools from 46°C and freezes is 6182.4 J
Heat: This is a form of energy that brings about the sensation of warmth. The S.I unit of heat is Joules (J)
⇒ Formula:
- Q = cm(t₂-t₁).................. Equation 1
⇒ Where:
- Q = amount of heat released
- c = specific heat capacity of water
- m = mass of water
- t₁ = Initial temperature
- t₂ = Final temperature
From the question,
⇒ Given:
- m = 32 g = 0.032 kg
- t₁ = 46 °C
- t₂ = 0 °C (Freezing point)
- c = constant = 4200 J/kg.°C
⇒ Substitute these values into equation 1
- Q = 0.032(4200)(0-46)
- Q = -6182.4 J
Note: The negative sign tells that heat is released and as such can be ignored.
Hence, The amount of heat released is 6182.4 J
Learn more about heat here: https://brainly.com/question/9614649
