Explain what is the change in entropy of a system

Reference no: EM13224879

1. How much heat does one mole of water release when its temperature is reversibly reduced from 350 K to 250 K at atmospheric pressure? You may assume that the heat capacities take constant values Cpl= 75.3 JK-1 and Cps = 36.8 JK-1. In addition ΔHfus = 6004 J at Tfus = 273 K. What are the enthalpy and entropy changes for the water?

2. What is the change in entropy of a system consisting of one mole of ideal gas when it is expanded isothermally and reversibly from a pressure of 6 bar to 2 bar at 275 K? What is the change of entropy of the surroundings?

Reference no: EM13224879

Questions Cloud

What average price change per year for the entire 10-year : An economist has predicted that for the next 5 years the U.S. will have an 8% annual inflation rate, followed by 5 year at a 6% inflation rate. this is equivalent to what average price change per year for the entire 10-year period

Compute the mass of khp : calculate the mass of KHP(KHC8H4O4) needed to react completely with 25 mL of a 0.10 M NaOH solution?

Determine the breakeven output and total sales revenues : a). Determine the breakeven output and total sales revenues and draw the cost-volume-profit chart, and b). determine the output that would generate a total profit of $60,000 and the total sales revenues at the output level; draw the cost-volume-pr..

What are external and internal analysis plan : Sources you expect to use to perform an internal environmental analysis and what are external and internal analysis plan.

Explain what is the change in entropy of a system : What is the change in entropy of a system consisting of one mole of ideal gas when it is expanded isothermally and reversibly from a pressure of 6 bar to 2 bar at 275 K? What is the change of entropy of the surroundings?

Which bond offers higher expected compound rate of return : A bond fund manager has a four year time horizon, and is considering two bonds. The first is a 15-year to maturity bond with a 6.60% coupon rate, paid annually. The price of this bond today is 100% of face value. The second bond is a 20-year to ma..

Determine if a good investment was on an after-tax basis : Fleet rental car company purchased 10 new cars for a total cost of $180,000. The cars generated income of $150,000 per year and incurred operating expenses of $60,000 per year. The company ises MACRS depreciation and its marginal tax rate is life ..

Explain what is the ph of hydrocyanic solution : Hydrocyanic acid is a weak acid with Ka = 4.9 x 10-10. What is the pH of a 0.4480 M hydrocyanic solution?

How much heat is absorbed sample of water when it is heated : How much heat is absorbed by a 125g sample of water when it is heated from 25.200C to 32.800C? The specific heat of water is 4.184 J/g0C.

User Account

All Pages