Enter your answer in the provided box.
In a gas expansion, 69 J of heat is absorbed by the system,
and the energy of the system decreases by
134 J.
Calculate the work done.
J
Enter your answer in the provided box. In a gas expansion, 69 J of heat is...
Enter your answer in the provided box. In a gas expansion, 81 J of heat is absorbed from the surroundings, and the energy of the system decreases by 119 J. Calculate the work done. J
3 attempts left Check my work Enter your answer in the provided box. In a gas expansion, 8.0 x 10'J of heat is absorbed from the surroundings, and the energy of the system decreases by 144 J. Calculate the work done.
Enter your answer in the provided box. A gas expands and does P-V work on the surroundings equal to 294 J. At the same time, it absorbs 221 J of heat from the surroundings. What is the change in energy of the system
Enter your answer in the provided box. From the data below, calculate the total heat (in J) needed to convert 0.172 mol of gaseous ethanol at 300.0°C and 1 atm to liquid ethanol at 25.0°C and 1 atm: AH 40.5 kJ/mol b.p. at 1 atm: 78.5°C vap Cliquid 2.45 J/goC 1.43 J/goC Cgas Enter your answer in the provided box. From the data below, calculate the total heat (in J) needed to convert 0.172 mol of gaseous ethanol at 300.0°C...
Enter your answer in the provided box. From the data below, calculate the total heat (in J) needed to convert 25.00 g of ice at -9.00°C to liquid water at 0.500°C: 0 AH 6.02 kJ/mol m.p. at 1 atm: 0.0°C fus liquid: 4.184 J/g.°C Csolid: 2.09 J/g.oc
Suppose the work done to compress a gas is 100 J. If 70 J of heat is lost in the process, what is the change in the internal energy of the gas? Hint: Use the first law of thermodynamics. The internal energy of a system changes due to heat (Q) and work (W): U=Q-W. The change in internal energy is equivalent to the difference between the heat added to the system and the work done by the system. Think if...
3 attempts left Check my work Enter your answer in the provided box. A 52.0-g sample of an unknown metal at 99°C was placed in a constant-pressure calorimeter containing 80.0 g of water at 24.0°C. The final temperature of the system was found to be 28.4°C. Calculate the specific heat of the metal. (The heat capacity of the calorimeter is 14.4 J/°C.) Book J/g °C Ferences
Enter your answer in the provided box. A 24.0-g sample of an unknown metal at 99°C was placed in a constant-pressure calorimeter containing 60.0 g of water at 24.0°C. The final temperature of the system was found to be 28.4°C. Calculate the specific heat of the metal. (The heat capacity of the calorimeter is 12.4 J/°C.) J/g. °C
Enter your answer in the provided box. Calculate the work done (in joules) when 50.6 g of tin dissolves in excess acid at 1.08 atm and 2.0 x 101°C. Assume ideal gas behavior. Sn(s) + 2H+ (aq) → Sn2+(aq) + H2(g) Enter your answer in the provided box. Calculate the work done (in joules) when 50.6 g of tin dissolves in excess acid at 1.08 atm and 2.0 x 101°C. Assume ideal gas behavior. Sn(s) + 2H+ (aq) → Sn2+(aq)...
Enter your answer in the provided box. How much heat (in kJ) is needed to convert 916 g of ice at -10.0°C to steam at 126.0°C? (The specific heats of ice, water, and steam are 2.03 J/g . oC, 4.184 J/g . oC, and 1.99 J/g , oC, respectively. The heat of fusion of water is 6.01 kJ/mol, the heat of vaporization is 40.79 k.J/mol.) k.J