1标准大气压下
加热时间(分钟) | 0 | 1 | 2 | 3 | 4 | 5 | 6 |
水的温度(℃) | 80 | 86 | 91 | 96 | 100 | 100 | 100 |
(2)乙组同学在停止加热已沸腾的水后,立刻通过注射器抽气,发现水重新沸腾了,请分析原因:
(3)上述抽气过程中,水重新沸腾时,水的温度会
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2