A 15.0 g sample of ethanol ( ) cools from 68.0 °C to 25.0 °C

PHYSICS · Subjective · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter

Problem

A 15.0 g sample of ethanol (

c = 2.44\,\text{J\,g}^{-1}\,^{\circ}\!\text{C}^{-1}

) cools from 68.0 °C to 25.0 °C. Calculate the value of

q

(include the correct sign) for the ethanol during this cooling.