Answer to Question #109258 in General Chemistry for Emily

Question

The specific heat capacity of copper metal is 0.385 J/g · K. How much energy is required to heat 204 g of copper from –17.7 °C to 28.5 °C?

Answer 1

Solution.

C= 0.385 J/g · K;

m=204 g;

T_final=28.5 °C=301.5 K;

T_initial= –17.7 °C=255.3 K;

$\Delta$T=T_final - T_initial; ΔT=301.5 K - 255.3 K =46.2 K;

q=C · m ·ΔT;

q=0.385 J/(g · K) · 204 g ·46.2 K=3628.5 J.

Answer: q=3628.5 J.