Explain the heat supplied expressed as a percentage

Assignment Help Chemistry

Reference no: EM13717816

Problem- Suppose that 100 J of energy is taken from a hot source at 300 degrees C, passes through a turbine that converts some of the energy into work, and then releases the rest of the energy as heat into a cold sink at 20 degrees C. What is the maximum amount of work that can be produced by this engine if overall it is to operate spontaneously? What is the efficiency of the engine, with work done divided by the heat supplied expressed as a percentage? How could the efficiency be increased?

If possible just a to the point details about how you got the answer?

Reference no: EM13717816

Questions Cloud

Calculate the number of air molecules in a liter : An ultra-high-vacuum pump can reduce the pressure of air from 1.0 atm to 1.0E-12 mmHg. Calculate the number of air molecules in a liter at this pressure and 298k.Compare your results with the number of molecules in 1.0 L at 1.0 atm and 298k. Assum..

Estimate the boiling point of br2 : Estimate the boiling point of Br2 (l). (b) From standard reference sources, find the actual boiling point of bromine. (c) How do these values compare?

Explain glucopyranose contains which functional group : Glucopyranose contains which functional group? A. acetal B. hemiacetal C. ketal D. hemiketal E. ketone

Define what would be the entropy change of the surroundings : Suppose that you were able to design an engine without a cold sink, so that the energy from a hot object could be transferred to the surroundings entirely as work, with no heat exchanged. (a) What would be the entropy change of the surroundings? (..

Explain the heat supplied expressed as a percentage : What is the efficiency of the engine, with work done divided by the heat supplied expressed as a percentage? How could the efficiency be increased?

Explain nitrous acid was titrated to the equivalence point : 50.00 mL of 0.1500 M NaNO3 (aq) was added to a sample containing solid gallium. Nitrate oxidized Ga (s) to Ga3+ (aq). The resulting nitrous acid was titrated to the equivalence point with 27.82 mL of 0.1000 M NaOH (aq). Determine the mass of Ga (s..

Calculate the change in entropy : Calculate the change in entropy when the pressure of 3.44 g of helium gas is decreased from 125.0 kPa to 65.0 kPa while the temperature decreases from 335 K to 273 K. Assume ideal behavior.

Explain mino acids and a peptide : The prosthetic group on sphingolipids can be: A. amino acids B. a peptide C. carbohydrates D. a heme group E. zinc

Calculate the change in entropy of water : Calculate the change in entropy of 1.0 L of water at 0 degrees C when it absorbs 470 J of energy from a heater. (b) If the 1.0 L of water is at 99 degrees C, what is the entropy change? (c) Explain any difference in entropy change.

User Account

All Pages