Answer:
e. The water is still a liquid.
Explanation:
We know that the thermal energy added to an object is related to its temperature by the formula:
[tex]Q=mc\Delta T=mc(T-T_0)[/tex]
Solving for the final temperature T, we obtain:
[tex]T=\frac{Q}{mc}+T_0[/tex]
Since the specific heat of water is c=4.186J/g°C and 5.0kJ=5000J, we get that the final temperature is:
[tex]T=\frac{5000J}{(15.5g)(4.186J/g\°C)}+10\°C\\\\T=87.0\°C[/tex]
As the boiling point of water (at sea level) is 100°C, and that temperature is not reached, then the correct answer is e. The water is still a liquid.
