Only typed answer please $,$sopve only when you sure. If the membrane potential of a neuron drops to $-55$mV and sodium ions start to flow from outside to inside the neuron at this moment. How much energy will be released or used up during this flow of sodium ions if the concentration of sodium ions outside and inside the membrane was $1\mathrm{.}5$ M and $0\mathrm{.}75$ M respectively