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What will be the loss of available energy associated with the transfer of 1000 kJ of heat from constant temperature system at 600 K to another at 400 K when the environment temperature is 300 K?
  • a)
    150 kJ
  • b)
    250 kJ
  • c)
    500 kJ
  • d)
    700 kJ
Correct answer is option 'B'. Can you explain this answer?
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What will be the loss of available energy associated with the transfer...
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Option (b)

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What will be the loss of available energy associated with the transfer...
Sir this option is wrong because 250 jo answere he vo to unavailable energy ka he available energy is 166.67 kj is correct
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What will be the loss of available energy associated with the transfer...
Loss of available energy is the energy that cannot be converted into useful work during a heat transfer process. In this case, we are given that 1000 kJ of heat is transferred from a constant temperature system at 600 K to another system at 400 K, with the environment temperature being 300 K. We need to determine the loss of available energy associated with this heat transfer.

The loss of available energy can be calculated using the equation:

Loss of available energy = (1 - Tc/Th) * Q

Where:
Tc is the cold temperature (in Kelvin)
Th is the hot temperature (in Kelvin)
Q is the amount of heat transferred

In this case, Tc = 400 K, Th = 600 K, and Q = 1000 kJ. Substituting these values into the equation, we get:

Loss of available energy = (1 - 400/600) * 1000 kJ
= (1 - 2/3) * 1000 kJ
= (1/3) * 1000 kJ
= 333.33 kJ

Therefore, the loss of available energy associated with the transfer of 1000 kJ of heat is approximately 333.33 kJ.

However, we are asked to find the answer in kJ, and the given options are in kJ. So, we need to round off our answer to the nearest whole number. The nearest whole number to 333.33 kJ is 333 kJ.

Therefore, the correct answer is option 'B' - 250 kJ.
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