Problem

Problem

A pure aluminium block with a mass of 10 g is heated so that its temperature increases from 20∘C20^{\circ}\text{C} to 50∘C50^{\circ}\text{C} . The specific heat capacity of aluminium is 8.99×10−1 J g−1 K−18.99 \times 10^{-1} \text{ J g}^{-1} \text{ K}^{-1} . Which expression gives the heat energy change in kJ? a. 10×8.99×10−1×30310 \times 8.99 \times 10^{-1} \times 303 b. 10×8.99×10−1×3010 \times 8.99 \times 10^{-1} \times 30 c. 10×8.99×10−1×3031000\frac{10 \times 8.99 \times 10^{-1} \times 303}{1000} d. 10×8.99×10−1×301000\frac{10 \times 8.99 \times 10^{-1} \times 30}{1000}

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