Дано: m<span> = 10 г = </span>0<span>,01 кг; Решение: ∆t = </span>t2−t1<span> = 100°C−</span>0<span>°C = 100°C; </span>t1<span> = </span>0<span>°C; </span>t2<span> = 100°C; </span>Q<span> = QНАГ+QИСП = mc∆t+rm = </span>m<span>(c∆t+r) = r = 2 ... Дано: m1 = </span>0,75 кг<span>; m2 = </span>250 г<span> = </span>0<span>,25 кг; r = 2,3⋅106 Дж/кг; </span>t1<span> = 20°C; </span>t2<span> = 100°C;.</span>
Решение в прикрепленной фотографии.