A sample of aluminum is heated from to in a laboratory oven

PHYSICS · Multi-part · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter

Problem

A 50.0 g50.0\,\text{g} sample of aluminum is heated from 25.0 ∘C25.0\,^{\circ}\text{C} to 60.0 ∘C60.0\,^{\circ}\text{C} in a laboratory oven. The specific heat capacity of aluminum in this temperature range is 0.897 J g−1 ∘C−10.897\,\text{J}\,\text{g}^{-1}\,^{\circ}\text{C}^{-1}. The process occurs at constant atmospheric pressure. (a) Calculate the quantity of heat, qq, transferred during the heating of the aluminum sample. Include the correct algebraic sign and units in your answer. (b) Based on your result in part (a), state whether the process for the aluminum sample is endothermic or exothermic and explain your reasoning.

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