A Lab Assistant Pours 330 G of Water At 45

A lab assistant pours 330 g of water at $45 ^ { \circ } \mathrm { C }$ into an 855-g aluminum container that is at an initial temperature of $10 ^ { \circ } \mathrm { C }$ The specific heat of aluminum is $900 \mathrm {~J} / \mathrm { kg } \cdot \mathrm { K }$ and that of water is $4186 \mathrm {~J} / \mathrm { kg } \cdot \mathrm { K }$ What is the final temperature of the system, assuming no heat is exchanged with the surroundings?

A) $32 ^ { \circ } \mathrm { C }$
B) $35 ^ { \circ } \mathrm { C }$
C) $28 ^ { \circ } \mathrm { C }$
D) $31 ^ { \circ } \mathrm { C }$
E) $33 ^ { \circ } \mathrm { C }$

Correct Answer:

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