温度/℃ | 0 | 20 | 40 | 60 | 80 | |
溶解度/g | 甲 | 0.18 | 0.16 | 0.14 | 0.12 | 0.09 |
乙 | 35.7 | 36.0 | 36.6 | 37.3 | 38.4 | |
丙 | 13.3 | 31.6 | 63.9 | 110 | 169 |
A.固体甲的溶解度随温度的升高而增大 |
B.20℃时,丙溶液中溶质和溶剂质量比为31.6:100 |
C.分别将等质量的乙、丙饱和溶液由60℃降温到20℃,溶液中溶质质量大小:丙>乙 |
D.分别将等质量的甲、丙饱和溶液由60℃降温到20℃,溶液中溶剂质量大小:甲>丙 |

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

