Suppose that 300.0 J of heat is transferred by conduction from a heat reservoir at a...

Suppose that 300.0 J of heat is transferred by conduction from a heat reservoir at a temperature of 415.0 K to another reservoir. Calculate the entropy change if the temperature of the second reservoir is 100.0 K

Expert Solution

genius_generous answered 2 years ago

a hot reservoir at 576k transfers 2100 j of heat irreversibly to a cold reservoir at...

a hot reservoir at 576k transfers 2100 j of heat irreversibly to a cold reservoir at 350 k. Find change in entropy of the universe.

Consider three engines that each use 2160 J of heat from a hot reservoir (temperature =...

Consider three engines that each use 2160 J of heat from a hot reservoir (temperature = 540 K). These three engines reject heat to a cold reservoir (temperature = 335 K). Engine I rejects 1497 J of heat. Engine II rejects 655 J of heat. Engine III rejects 1340 J of heat. One of the engines operates reversibly, and two operate irreversibly. However, of the two irreversible engines, one violates the second law of thermodynamics and could not exist. For...

Consider three engines that each use 1695 J of heat from a hot reservoir (temperature =...

Consider three engines that each use 1695 J of heat from a hot reservoir (temperature = 565 K). These three engines reject heat to a cold reservoir (temperature = 325 K). Engine I rejects 975 J of heat. Engine II rejects 655 J of heat. Engine III rejects 1108 J of heat. One of the engines operates reversibly, and two operate irreversibly. However, of the two irreversible engines, one violates the second law of thermodynamics and could not exist. For...

Heat flows from a reservoir at 373 K to a reservoir at 273 K through a...

Heat flows from a reservoir at 373 K to a reservoir at 273 K through a 0.39-m copper [thermal conductivity 390 J/(s

A particular power plant operates with a heat-source reservoir at 350°C and a heat-sink reservoir at...

A particular power plant operates with a heat-source reservoir at 350°C and a heat-sink reservoir at 30°C. It has a thermal efficiency equal to 67% of the Carnot-engine thermal efficiency for the same temperatures. What is the thermal efficiency of the plant? The thermal efficiency of the plant is .

Suppose heat is transferred at a rate of 500 W into 1 L of water. The...

Suppose heat is transferred at a rate of 500 W into 1 L of water. The water starts at 20˚C. a) How much heat is required to raise the water temperature to 100 ˚C? How long does this take? b) How much heat is required to boil off half the water? How long does this take? Comment on the value compared to part a. c) Plot temperature vs Q for this heating process. You should only need 3 points for...

14) Suppose a low-boiling liquid like ammonia is placed in a heat reservoir and part of...

14) Suppose a low-boiling liquid like ammonia is placed in a heat reservoir and part of the energy of the surroundings is used to vaporize the liquid.The adiabatically expanding gas does work by driving a piston and during the expansion the gas cools until it condenses to a liquid, the liquid is once again vaporized using energy available from the surroundings, and the cycle is repeated. Can such an engine be made operational?

A heat engine operates between a high-temperature reservoir at 610 K and a low-temperature reservoir at...

A heat engine operates between a high-temperature reservoir at 610 K and a low-temperature reservoir at 320 K. In one cycle, the engine absorbs 6800 J of heat from the high-temperature reservoir and does 2200 J of work. A) What is the net change in entropy as a result of this cycle?

Determine how much energy in kJ would be transferred if 300.0 grams of steam (gaseous water)...

Determine how much energy in kJ would be transferred if 300.0 grams of steam (gaseous water) at 150.0 ̊C is cooled to ice (solid water) at -20.0 ̊C. The specific heat of steam is 1.86 J/(g∙ ̊C), the specific heat of ice is 2.06 J/(g∙ ̊C), the heat of fusion of water is 333 J/g, and the heat of vaporization is 2256 J/g.

Calculate the mass of methane that must be burned to provide enough heat to convert 300.0...

Calculate the mass of methane that must be burned to provide enough heat to convert 300.0 g of water at 30.0°C into steam at 106.0°C.

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