Physics

Physics

Problem

A 25.0 g25.0\,\text{g} sample of aluminum (c=0.897 J g−1 ∘C−1c = 0.897\,\text{J g}^{-1}\,^{\circ}\text{C}^{-1}) cools from 60.0 ∘C60.0\,^{\circ}\text{C} to 25.0 ∘C25.0\,^{\circ}\text{C}. What is the value of qq for the aluminum sample? a) +7.85×102 J+7.85\times10^{2}\,\text{J} b) −3.65×103 J-3.65\times10^{3}\,\text{J} c) −7.85×102 J-7.85\times10^{2}\,\text{J} d) −1.12×103 J-1.12\times10^{3}\,\text{J}

Browse the problem library