Q2.3 Solar houses are designed to retain the heat absorbed during the day so that the stored hear can be released during the night. A botanist produces steam at 100- during the day and then allows the steam to cool to 0 °C and freeze during the night. How many kilograms of water are needed to store 200 kJ of energy for the process? (Use the laten heat of vaporization of water L. = 22.6 × 105 3/ Kg, the laten heat of fusion of water L₁= 33.5 x 104 J/Kg, and the specific heat capacity of water c = 4186 J/ kg. C. Hint: you need to use both the formula of the heat Q = mcVT and Q = mL)
Q2.3 Solar houses are designed to retain the heat absorbed during the day so that the stored hear can be released during the night. A botanist produces steam at 100- during the day and then allows the steam to cool to 0 °C and freeze during the night. How many kilograms of water are needed to store 200 kJ of energy for the process? (Use the laten heat of vaporization of water L. = 22.6 × 105 3/ Kg, the laten heat of fusion of water L₁= 33.5 x 104 J/Kg, and the specific heat capacity of water c = 4186 J/ kg. C. Hint: you need to use both the formula of the heat Q = mcVT and Q = mL)
Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter2: Matter And Energy
Section: Chapter Questions
Problem 27RQ: How many Btu/h would be produced in a 12-kW electricheater?
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Question
![Q2.3 Solar houses are designed to retain the heat absorbed during the day so that
the stored hear can be released during the night. A botanist produces steam at
100 during the day and then allows the steam to cool to 0 °C and freeze during
the night. How many kilograms of water are needed to store 200 kJ of energy
for the process? (Use the laten heat of vaporization of water L. = 22.6 × 105 3/
Kg, the laten heat of fusion of water L₁= 33.5 x 104 J/Kg, and the specific heat
capacity of water c = 4186 J/kg. C. Hint: you need to use both the formula of
the heat Q = mcVT and Q = mL)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd82e1c9f-a688-47ae-a0a8-ecf934ddca51%2F0f09d26e-9ee3-4d4c-ac49-24d88debb30c%2Ffhat4sg_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q2.3 Solar houses are designed to retain the heat absorbed during the day so that
the stored hear can be released during the night. A botanist produces steam at
100 during the day and then allows the steam to cool to 0 °C and freeze during
the night. How many kilograms of water are needed to store 200 kJ of energy
for the process? (Use the laten heat of vaporization of water L. = 22.6 × 105 3/
Kg, the laten heat of fusion of water L₁= 33.5 x 104 J/Kg, and the specific heat
capacity of water c = 4186 J/kg. C. Hint: you need to use both the formula of
the heat Q = mcVT and Q = mL)
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