Exam 14: Heat

The specific of ice is 2.10 kJ/kg $^{\circ}$ C,the heat of fusion for ice at 0 $^{\circ}$ C is 333.7 kJ/kg,the specific heat of water 4.186 kJ/kg $^{\circ}$ C,and the heat of vaporization of water at 100 $^{\circ}$ C is 2,256 kJ/kg.What is the final equilibrium temperature when 10.0 grams of ice at -15 $^{\circ}$ C is mixed with 40.0 grams of water at 75 $^{\circ}$ C?

A brass rod with a length of 20.0 cm is placed side by side with an aluminum rod with a length of 20.0 cm and this system is placed between a hot temperature of 150 $^{\circ}$ C and a cold temperature of -10.0 $^{\circ}$ C.The coefficient of thermal conductivities of the brass and the aluminum are 100 W/m $^{\circ}$ C and 230 W/m C respectively.The rods have the same cross sectional area of 20.0 cm².What is the heat flow from the hot temperature to the cold temperature?

A 1500 W portable heater is needed to replace the heat lost through a circular window in the wall of a home that is made of a single pane of glass 0.30 cm thick.Thermal conductivity for the glass is 0.63 W/mK.The temperature inside the house is 20 $^{\circ}$ C and outside is -12 $^{\circ}$ C.What is the radius of the window?

Which of the following is NOT included in the internal energy of a system?

The specific heat of ice is 2.100 kJ/kg $^{\circ}$ C,the heat of fusion for ice at 0 $^{\circ}$ C is 333.7 kJ/kg,the specific heat of water 4.186 kJ/kg $^{\circ}$ C,and the heat of vaporization of water at 100 $^{\circ}$ C is 2,256 kJ/k.What is the final equilibrium temperature when 10.00 grams of ice at -15.00 $^{\circ}$ C is mixed with 2.00 grams of steam at 100.0 $^{\circ}$ C?

The specific heat of ice is 2.100 kJ/kg $^{\circ}$ C,the heat of fusion for ice at 0 $^{\circ}$ C is 333.7 kJ/kg,the specific heat of water 4.186 kJ/kg $^{\circ}$ C,the heat of vaporization of water at 100.0 $^{\circ}$ C is 2,256 kJ/kg,and the specific heat of steam is 2.020 kJ/kg $^{\circ}$ C.What is the final equilibrium temperature when 20.00 grams of ice at -15.0 $^{\circ}$ C is mixed with 5.000 grams of steam at 120.0 $^{\circ}$ C?

The heating element of an electric stove is glowing.The color of the hot stove element is red with a blackbody radiation with a maximum at a wavelength of 1.000 micron.What is the temperature of the stove element?