Question

A 30.0kg of water sample at 30oC is mixed with 30.0kg of water at 35.0oC. Find...

A 30.0kg of water sample at 30oC is mixed with 30.0kg of water at 35.0oC. Find entropy change for (a) the hot water i.e. for water at 35oC (b) the cooler water i.e. for water at 30oC, and (c) the system (of hot and cool water) . The specific heat of water is 4184 J/kg.K

Physics

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A heat recovery unit in a factory uses a shell-in-tube counter flow type unit to recover...
A heat recovery unit in a factory uses a shell-in-tube counter flow type unit to recover heat from a flow of hot fluid to preheat water for the factory. The hot fluid enters at 88°C and a flow rate of 25 kg/minute, and exits at 55°C. The cold water will enter the heat exchanger at 15°C and exit at 55°C. Take cHot-fluid = 3000 J/kg.K, cwater = 4200 J/kg.K. PART (b) An air to water heat exchanger with an effectiveness...
If 150 g of water at 30 deg C is mixed with 300 g of Ice...
If 150 g of water at 30 deg C is mixed with 300 g of Ice at 0 deg C, the total change in entropy will be Properties of Water: Heat of Fusion hF334 J/g Heat of VaporizationHV2264.76 J/g Specific Heat of IceCice2.080 J/g/K Specific Heat of WaterCwater4.1813 J/g/K Specific Heat of VaporCvapor2.11 J/g/K a. 18800 J/K b. 298 J/K c. 68.9 J/K d. 3.53 J/K
An insulated container has 2.00kg of water at 25◦C to which an unknown amount of ice...
An insulated container has 2.00kg of water at 25◦C to which an unknown amount of ice at 0◦C is added. The system comes to an equilibrium temperature of 20◦C. The heat capacity for water is 4190 J and the heat of fusion for ice is kg·K kJ LF =334kg. (a) Determine the amount of ice that was added to the water. (b) What is the change in the entropy associated with the ice melting? (c) What is the change in...
4.5 kg of water at 23 ∘C is mixed with 4.5 kg of water at 46...
4.5 kg of water at 23 ∘C is mixed with 4.5 kg of water at 46 ∘C in a well-insulated container. Estimate the net change in entropy of the system
Suppose that there are two very large reservoirs of water, one at a temperature of 87.0...
Suppose that there are two very large reservoirs of water, one at a temperature of 87.0 ∘C and one at a temperature of 19.0 ∘C. These reservoirs are brought into thermal contact long enough for 40210 J of heat to flow from the hot water to the cold water. Assume that the reservoirs are large enough so that the temperatures do not change significantly. What is the total change in entropy, Δ?tot, resulting from this heat exchange between the hot...
An unknown mass of water (m1) of temperature 3.4°C is mixed with another unknown mass of...
An unknown mass of water (m1) of temperature 3.4°C is mixed with another unknown mass of water (m2) of 55.6°C. The combined mixture of water (m3) has a temperature of 26.1°C. Determine the mass of (m1) and (m2) WITHOUT using cwater= 4184 J/kg°C.
An unknown mass of water (m1) of temperature 3.4°C is mixed with another unknown mass of...
An unknown mass of water (m1) of temperature 3.4°C is mixed with another unknown mass of water (m2) of 55.6°C. The combined mixture of water (m) has a temperature of 26.1°C and a mass of 154 grams. Determine the mass of (m1) and (m2) WITHOUT using cwater = 4184 J/kg°C.
0.100 kg of water at 10∘C is added to 0.300 kg of soup at 50∘C. Assume...
0.100 kg of water at 10∘C is added to 0.300 kg of soup at 50∘C. Assume complete transfer of thermal energy from soup to the water, with no transfer of energy to the environment. Specific heat of water is 4180 J/kg⋅∘C. The soup has the same specific heat as water. A) Determine the final temperature? Express in Celsius B) Estimate the entropy change of this water-soup system during the process using the actual temperatures to determine the heat transferred and...
This problem examines the effects of mixing water at two different temperatures and/or two different phases,...
This problem examines the effects of mixing water at two different temperatures and/or two different phases, such as dropping ice cubes into warm water. Assume that heat of fusion is 333.55 J/g, that CP for ice is constant at 2.11 J/(g·K), and CP for liquid water is constant at 4.19 J/(g·K). You can assume CP approximately equals CV for solids and liquids. For each of the following cases, assume the mixing is adiabatic and carried out at atmospheric pressure. Find...
A piece of ice at 0 0C is put in 2.00 Kg of water at 20...
A piece of ice at 0 0C is put in 2.00 Kg of water at 20 0C. The equilibrium temperature of the system becomes 5 0C. (Lf=333 kJ/Kg, cw=4186 J/Kg, TK=TC+273.15) a) Find the mass of ice? Kg b) Find the entropy change of ice? J/K c) Find the entropy change of water? J/K d) Find the total entropy change of sysem? J/K
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT