Question

1.1) cylinder is heated on one end and cooled on the other. The heater is powered by 12 ± 0.05 V
and 2.5 ± 0.1 A. A mass flow rate of 0.07 ± 0.01 L/s of water (cp = 4200 ± 20 J / kgK ) is used
for cooling, experiences a temperature difference of AT = 8.7 ± 0.1°C. Determine the heat loss
between the heater and the water, and find the uncertainty.

1.2)The cylinder in the "1.1" question, is 10 ± 0.01 cm long and has a diameter of 5 ± 0.01 cm. The
temperature difference across the cylinder is measured as 7.6 ± 0 . 1 °C. Determine the thermal
conductivity.

Answer 1

cet.SA man 0.01 디스 뜻 녹 x10。7, 2.0 g,구 51325 2.S -3 0107w