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SAT® Subject Test in Physics

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Moderate

Melting a Block

SATPHY-JQ7F1E

We have $2.0\ kg$ of a block of a substance at its melting point. The substance has a latent heat of fusion of $1500 \ Joules $ per kilogram and a specific heat of $2500\ Joules$ per kilogram degree Celcius.

How much heat is needed to change the block entirely into a liquid?

A

$5000\ J$

B

$750\ J$

C

$1250\ J$

D

$3000\ J$

E

$8000\ J$