时间/min |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
海波的温度/℃ |
40 |
42 |
44 |
46 |
48 |
48 |
48 |
48 |
48 |
48 |
50 |
53 |
56 |
松香的温度/℃ |
40 |
41 |
42 |
44 |
46 |
47 |
48 |
49 |
51 |
52 |
54 |
56 |
59 |
时间/min | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
冰的温度/℃ | -5 | -4 | -3 | -2 | -1 | 0 | 0 | 1 | 2 | 3 | 4 |
萘的温度/℃ | 72 | 74 | 76 | 78 | 80 | 80 | 80 | 80 | 82 | 84 | 86 |
加热时间/min | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
金属温度/℃ | 400 | 482 | 563 | 645 | 660 | 660 | 660 | 660 | 660 | 660 | 702 | 778 |
①该蜡模体积为多少立方厘米?
②若用密度为 2.7×103kg/m3的金属浇铸工件,该工件的质量为多少?
盐水浓度(%) |
9 |
15 |
21 |
凝固点(℃) |
-6 |
-11 |
-18 |