Part A

An open container holds ice of mass $0\mathrm{.}555kg$ at a

temperature of $-14\mathrm{.}9C.$ The mass of the

container can be ignored. Heat is supplied to the

container at the constant rate of $810\frac{J}{?}$ minute $.$

The specific heat of ice to is $2100\frac{J}{k}g*K$ and

the heat of fusion for ice is $334{10}^3\frac{J}{k}g.$

How much time $t_{\text{m}\text{e}\text{l}\text{t}\text{s}}$ passes before the ice starts to melt?

View Available Hint$($s$)$

$t_{\text{m}\text{e}\text{l}\text{t}\text{s}}=[,]$ minutes

Part B

From the time when the heating begins, how much time $t_{\text{r}\text{i}\text{s}\text{e}}$ does it take before the

$C?$

View Available Hint$($s$)$

$t_{\text{r}\text{i}\text{s}\text{e}}=$

minutes