Question

generate the heating graph for h₂o. determine the quantity of energy transfer required to heat 1.0 g solid h₂o from -50 °c to the melting point 0 °c.

Explanation:

Step1: Identify the relevant heat - capacity formula

The formula for heat transfer during a temperature change is $q = mc\Delta T$, where $q$ is the heat energy transferred, $m$ is the mass of the substance, $c$ is the specific heat capacity, and $\Delta T$ is the change in temperature. For ice (solid $H_2O$), the specific heat capacity $c = 2.09\ J/g^{\circ}C$. The mass $m = 1.0\ g$, and $\Delta T=T_f - T_i=0 - (- 50)^{\circ}C = 50^{\circ}C$.

Step2: Calculate the heat energy

Substitute the values into the formula: $q=(1.0\ g)\times(2.09\ J/g^{\circ}C)\times50^{\circ}C$.
$q = 104.5\ J$.

Answer:

$104.5\ J$