Water at 54F is heated by passing it through 0.75-in.- internal-diameter thin-walled copper tubes. Heat is...

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Water at 54F is heated by passing it through 0.75-in.- internal-diameter thin-walled copper tubes. Heat is supplied to the water by steam that condenses outside the copper tubes at 250F. If water is to be heated to 140F at a rate of 0.7 lbm/s, determine the length of the copper tube that needs to be used. Assume the entire copper tube to be at the steam temperature of 250F Water at 54F is heated by passing it through 0.75-in.- internal-diameter thin-walled copper tubes. Heat is supplied to the water by steam that condenses outside the copper tubes at 250F. If water is to be heated to 140F at a rate of 0.7 lbm/s, determine the length of the copper tube that needs to be used. Assume the entire copper tube to be at the steam temperature of 250F