(1)组装器材时,应先固定图甲中的
(2)开始实验后,某一时刻温度计的示数如图甲所示,温度为
(3)根据实验数据绘制的两种物质熔化时温度随时间变化图像如图乙所示,由图像可知石蜡是
(4)由实验可得到晶体熔化特点:
(5)由实验可知,晶体的温度是熔点时,可能处于
A.固 B.液 C.固液共存
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