# Question: An aluminum cup of mass 200 g contains 800 g

An aluminum cup of mass 200 g contains 800 g of water in thermal equilibrium at 80.0°C. The combination of cup and water is cooled uniformly so that the temperature decreases by 1.50°C per minute. At what rate is energy being removed by heat? Express your answer in watts

**View Solution:**## Answer to relevant Questions

The relationship Lf = Li (1 + αΔT) is an approximation that works when the average coefficient of expansion is small. If α is large, one must integrate the relationship dL/dT =αL to determine the ...In a chemical processing plant, a reaction chamber of fixed volume V0 is connected to a reservoir chamber of fixed volume 4V0 by a passage containing a thermally insulating porous plug. The plug permits the chambers to be at ...How much energy is required to change a 40.0-g ice cube from ice at -10.0°C to steam at 110°C?A sample of ideal gas is expanded to twice its original volume of 1.00 m3 in a quasi-static process for which P =αV 2, with α = 5.00 atm/m6, as shown in Figure P20.23. How much work is done on the expanding gas?A sample of an ideal gas goes through the process shown in Figure P20.32. From A to B, the process is adiabatic; from B to C, it is isobaric with 100 kJ of energy entering the system by heat. From C to D, the process is ...Post your question