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Common Data QuestionsCommon Data for Questions 48 and 49 :In a muscle, the extracellular and intracellular concentrations of Na are 150 mM and 12 mM, and those ofK are 2.7 mM and 140 mM respectively. Assume that the temperature is 25C and that the membranepotential is -60 m\': with the interior more negatively charged than the exterior. (R = 8.314 J mol'1 K'l;F = 96.45 kJ mol1 v1)Q48 The free energy change for the transport of three Na out of the cell is

  1. +1.5 kJ.-"mol
  2. +174 kJr'mol
  3. +18.9 kl-mol
  4. +363 kl-mol
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