# How much heat do you need to raise the temperature of 150 g of ice from -30°C to -15°C?

Mar 30, 2016

Required Heat to raise the given temperature by $\Delta \theta$ is given by:
$H = m \cdot c \cdot \Delta \theta$, where, m is the mass, c is the specific heat capacity of the material and $\Delta \theta$ is change in temperature. Using for ice c = 0.5 Cal/g/°C,
H=150*0.5*(-15-(-30)
$H = 75 \cdot 15 = 1125 c a l$