Expression for calculating heat
Answers
Answer:
Heat Transfer Formula. Heat, a measure of thermal energy, can be transferred from one point to another. ... The specific heat of copper, Cu, is c = 0.386 J/g°C. Answer: The temperature change Δ T = 100 °C - 20 °C = 80 °C. The mass, m = 50 g.
Answer:
Heat Transfer Formula
Heat, a measure of thermal energy, can be transferred from one point to another. Heat flows from the point of higher temperature to one of lower temperature. The heat content, Q, of an object depends upon its specific heat, c, and its mass, m. The Heat Transfer is the measurement of the thermal energy transferred when an object having a defined specific heat and mass undergoes a defined temperature change.
Heat transfer = (mass)(specific heat)(temperature change)
Q = mcΔT
Q = heat content in Joules
m = mass
c = specific heat, J/g °C
T = temperature
ΔT = change in temperature
Heat Transfer Formula Questions:
1) How much energy is transferred if a block of copper with a mass of 50 g is heated from 20°C to 100 °C? The specific heat of copper, Cu, is c = 0.386 J/g°C.
Answer: The temperature change Δ T = 100 °C - 20 °C = 80 °C. The mass, m = 50 g. Use the formula for Heat Transfer.