Recent content by christodoulou Andrea

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    How Many Freon Cycles to Lower Refrigerator Air by 12°C?

    I know tha ihave two moles of freon but after that i can't continue
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    How Many Freon Cycles to Lower Refrigerator Air by 12°C?

    Electrical refrigerator conains 242 gr. of freon (Melecolar mass:121).For the evaporation of 1 mole of this freon are need 4,8 kcal.The capacity of the frigidaire is 120 liters and its performance coefficient is 25%.To increase the temperature of one mole of air by 1 celsius degree we need 7...
  3. C

    How Many Freon Cycles to Lower Refrigerator Air by 12°C?

    please somebody help me! Electrical refrigerator contains 242 gr.Freon(mm.121).For the evaporation of 1 mole of this freon we need 4,8kcal.the capacity of the refrigerator is 120 liters.The performance coefficient is 25%.To incease the temperature of one mole of air to 1 C degree we need 7...
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    How Do I Solve a Second Derivative Using Implicit Differentiation?

    The curve y1 is y1=ax^2+ax+b.The curve y2 is y2=cx-x^2.They both have common tangent the line which passes through the ponit (1,0).Find the a,b,c. Please somebody help me.Thank you.
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