Answer to Question #319708 in General Chemistry for grey tyrant

Question

The specific heat of copper metal is 0.385 j/g-oK. How many kJ of heat are needed to raise the temperature of 1.1 kg block of copper from 27.5°C to 50°C?

Answer 1

We apply the equation;

q = mC$\Delta$T;

Where:

q is the heat energy

C is the specific heat capacity of copper (0.385 j/g-oK)

m is the mass of copper (1.1 kg)

$\Delta$T is the change in temperature (27.5°C to 50°C) = 22.5K

Thus

q = (1.1 x1000g) x (0.385 j/g-oK) x (22.5K)

= 9528.75J

= 9.527kJ