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SAT® Subject Test in Chemistry

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Energy and Water

SATCHM-8OM2FE

How much energy is needed to convert 100g of ice at 263K to liquid water at a temperature of 283K?

$$C_\text{ice}= 0.49 \ cal/gºC$$

$$C_\text{water}= 1.00 \ cal/gºC$$

$$ΔH_\text{fus}= 79.8 \ cal/g$$

$$ΔH_\text{vap}= 540 \ cal/g$$

A

$10470 \ cal$

B

$3288 \ cal$

C

$2288 \ cal$

D

$727.3 \ cal$

E

$9470 \ cal$