A cell is roughly spherical with a radius of 30.5×10−6m. The surface tension of water is 71.99 mN⋅m−1. If the cell grows to double its volume, calculate the magnitude of the work required to expand the cell surface. Assume the cell is surrounded by pure water and that T=298.15K. Express your answer with the appropriate units. Please explain how you arrived to your answer.
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