Through the use of molecular dynamics simulations, we have studied the enhanced heating of salty ice and water by the electric field of applied microwaves at 2.5 GHz, and in the range of 2.5–10 GHz for the frequency dependence. We show that water molecules in salty ice are allowed to rotate in response to the microwave electric field to the extent comparable to those in pure water because the molecules in salty ice are loosely tied by hydrogen bonds with adjacent molecules unlike rigidly bonded pure ice. The weakening of hydrogen-bonded network of molecules in salty ice is mainly due to the electrostatic effect of salt ions rather than the short-range geometrical (size) effect of salt since the presence of salt ions with small radii causes similar enhanced heating.

中文翻译：

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微波下咸冰和水的强化加热：分子动力学研究

通过使用分子动力学模拟，我们研究了 2.5 GHz 和 2.5-10 GHz 范围内的频率依赖性应用微波电场对咸冰和水的增强加热。我们表明，咸冰中的水分子可以响应微波电场而旋转，其旋转程度与纯水中相当，因为咸冰中的分子通过与相邻分子的氢键松散地结合在一起，而不像刚性结合的纯冰。咸冰中分子氢键网络的减弱主要是由于盐离子的静电效应而不是盐的短程几何（尺寸）效应，因为小半径盐离子的存在会导致类似的增强加热。