Answer to Question #151222 in General Chemistry for Javier

Question

A large bottle containing 859 g of water at 9 C is removed from the refrigerator.

How many kilojoules are absorbed to warm the water to room temperature of 22 C?

please express answer to two significant figures and include the appropriate units.

Answer 1

Q=mc∆T

m=859g=0.859kg

c=4200J/kg°c

∆T=22-9=13°c

Q=0.859x4200x13=47000J=47kJ