If the temperature of 0.20 kg of gold, which has a specific heat of 130 J/kg • °C, increases by 25°C, how much energy has been transferred to the gold by heat?
heat in = 130 * .2 * 25 Joules
i have no idea please help.
To calculate the amount of energy transferred to the gold by heat, we need to use the equation:
Q = mcΔT
Where:
Q is the amount of heat energy transferred (in Joules),
m is the mass of the gold (in kilograms),
c is the specific heat capacity of gold (in J/kg • °C), and
ΔT is the change in temperature (in °C).
Given:
m = 0.20 kg (mass of gold)
c = 130 J/kg • °C (specific heat capacity of gold)
ΔT = 25 °C (change in temperature)
Plugging the given values into the equation:
Q = (0.20 kg) x (130 J/kg • °C) x (25 °C)
Q = 650 J/kg • °C x 25 °C
Q = 16,250 Joules
Therefore, 16,250 Joules of energy has been transferred to the gold by heat.