Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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- You may also assume X behaves as an ideal gas in the vapor phase. Suppose a small sample of X at 50 °C is put into an evacuated flask and heated at a constant rate until 10.0 kJ/mol of heat has been added to the sample. Graph the temperature of the sample that would be observed during this experiment. temperature (°C) 150- 140- 130- 120- 110- 100 90 80- 70- 60 50 0 heat added (kJ/mol) 10. Xarrow_forward1 A 25.0 g sample of quartz, which has a specific heat capacity of 0.730 JgC, is dropped into an insulated container containing 300.0 g of water at 75.0 °C and a constant pressure of 1 atm. The initial temperature of the quartz is 4.1 °C. Assuming no heat is absorbed from or by the container, or the surroundings, calculate the equilibrium temperature of the water. Be sure your answer has 3 significant digits. C 0 x10 X Sarrow_forwardTwo 20.0 g ice cubes at −15.0 ∘C−15.0 ∘C are placed into 285 g285 g of water at 25.0 ∘C.25.0 ∘C. Assuming no energy is transferred to or from the surroundings, calculate the final temperature, ?f,Tf, of the water after all the ice melts.arrow_forward
- Determine the heat associated when 50.0 grams of steam are converted to liquid at 100.0 degrees celciusarrow_forwardCarbon tetrachloride (CCl4) boils at 77∘C. The measured enthalpy of vaporization is 29.8 kJ/mol What is the heat of vaporization?arrow_forwardCalculate the amount of heat needed to raise the temperature of 55.0 g of liquid water from 25°C to 99°C. The specific heat of liquid water is 1.00 cal/g °Carrow_forward
- A sample of steam with a mass of 0.529 g at a temperature of 100 °C condenses into an insulated container holding 4.25 g of water at 5.0 °c. (For water, AHvap = 40.7 kJ/mol and Cwater = 4.18 J/(g · °C).) - Part A Assuming that no heat is lost to the surroundings, what is the final temperature of the mixture? Express your answer using three significant figures.arrow_forwardExamining ammonia (NH3) in a laboratory you find that compressing 90.4 g of that substance to a liquid releases 150.8 kJ of energy. Assuming all the energy transferred is due to compressing ammonia into a liquid, what is the heat of vaporization of ammonia?arrow_forwardCalculate the amount of heat (in kJ) required to raise the temperature of a 86.0 g sample of ethanol from 198.0 K to 300.0 K. The specific heat capacity of ethanol is 2.42 J/g°C. 60.0 kJ 21.2 kJ 11.9 kJ 75.6 kJ 28.4 kJarrow_forward
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