Lead pellets of total mass 0.60 kg are heated to and then placed in a well-insulated aluminum cup of mass 0.20 kg that contains 0.50 kg of water initially at 17.3oC. What is the equilibrium temperature of the mixture?
Answer to relevant QuestionsA student mixes 1.0 L of water at 40oC with 1.0 L of ethyl alcohol at 20oC. Assuming that no heat is lost to the container or the surroundings, what is the final temperature of the mixture? Water is boiled to add moisture to the air in the winter to help a congested person breathe better. Calculate the heat required to boil away 1.0 L of water that is initially at 50oC. If 0.050 kg of ice at 0oC is added to 0.300 kg of water at 25oC in a 0.100-kg aluminum calorimeter cup, what is the final temperature of the water? One kilogram of a substance experimentally shows the T-versus-Q graph in Fig. 11.21. (a) What are its melting and boiling points? In SI units, what are (b) The specific heats of the substance during its various phases and ...A student ate a Thanksgiving dinner that totaled 2800 Cal. He wants to use up all that energy by lifting a 20-kg mass a distance of 1.0 m. Assume that he lifts the mass with constant velocity and no work is required in ...
Post your question