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What is the quantity of heat required to conver... - JAMB Physics 2022 Question

What is the quantity of heat required to convert 20 g of ice at 0 ºC to water at the same temperature? (Specific latent heat of ice = 336 Jg\(^{-1}\))

A

7.06 x 10\(^{3}\)J

B

5.38 x 10\(^{3}\)J

C

6.72 x 10\(^{3}\)J

D

1.35 x 10\(^{3}\)J

correct option: c

Quantity of heat = mass * specific latent heat 

=> 20 * 336 

Quantity of heat = 6720j

= 6.72 x 10\(^{3}\)J

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