论文部分内容阅读
1.巧取参考点例1 将40克10℃的水、30克30℃的水和20克70℃的水混合,求混合后的水温.(假设混合过程无热量损失)[分析]如果根据 Q=cmΔt 和热平衡方程进行计算,其运算将是复杂的.对这类问题可采取“巧取参考点”的简便方
1. Clever Reference Example 1 Mix 40 g of water at 10°C, 30 g of water at 30°C, and 20 g of water at 70°C to obtain the mixed water temperature (assuming there is no heat loss during mixing) [Analyze] If The calculation of Q=cm Δt and the heat balance equation will be complicated. The simple method of “smart reference point” can be adopted for this type of problem.