Question

Calculate the amount of heat needed to melt a piece of ice that has a mass of 150.0 g. Hf = 334 J/g assume no temperature change takes place.

Answer 1

50,100Joules

Step-by-step explanation:

The formula for calculating the amount of heat needed to melt to ice is expressed as:

`Q=m\triangle H_f`

where:

• m is the ,mass of ice, = 150.0g

,

• Heat of ,formation, Hf = 334J/g

Substitute the given parameters into the formula

`\begin{gathered} Q=150.0\cancel{g}*\frac{334J}{\cancel{g}} \\ Q=50,100Joules \end{gathered}`

Hence the amount of heat needed to melt a piece of ice is 50,100Joules