When the pressure is 20MPa and the air temperature is 20 ° C, how many cubic meters is 1 ton of CNG equal to

When I add gas one day, I'll weigh the weight of the car, and I'll calculate it for you. 20 presses at a time can add about 13 cubic meters of gas. My 65 can

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1. How much cubic carbon dioxide is produced by the complete reaction of 3.95kg ammonium bicarbonate with 2.45kg sulfuric acid (concentration is 100%)?
2. How much gaseous oxygen (standard state) does 1 cubic meter of liquid oxygen produce? Carbon dioxide and argon?
3. How many cubic meters of gaseous carbon dioxide can a ton of liquid carbon dioxide lco2 gasify under normal pressure How many cubic meters of gaseous carbon dioxide (CO2) can a ton of liquid carbon dioxide (lco2) gasify under normal pressure
4. What is the chemical formula for the conversion of carbon dioxide into oxygen
5. Write a program in C language, input an arbitrary integer, find its number of digits and the sum of each digit's cube
6. How to calculate the cube of a number?
7. What is an integer if half of it is a complete square number and one third of it is a complete cubic number
8. Using a calculator to explore the law: write an integer greater than 100 that can be divided by 3, and find the sum of the number cubes on each digit of the number What rules do you find when you go on like this? Take any integer that meets the conditions and try to verify your discovery!
9. Write an integer that is greater than 100 and can be divided by 3, and find the cubic sum of the numbers on each digit of the number. Repeat the above operation for the sum. What rule do you find when you continue? Then take any integer that meets the conditions and try to verify whether the result is correct I know the answer is 153, but I don't know how to calculate it List a number 123. How can I get 153? Forgive my ignorance If 123 is not OK, what number is OK?
10. Dividing by a nonzero number is equal to multiplying by the reciprocal of the number______ (judge right or wrong)
11. How many liters is the standard volume of a bottle of nitrogen under the pressure of 12MPa? How many cubic meters is each bottle? Solution, formula, algorithm!
12. How many tons of coal is a cubic meter
13. How much does a cubic meter of gold weigh I just saw one saying that osmium is the heaviest. One cubic meter has more than 22 tons. What's the weight of one cubic meter of gold?
14. How much does a cubic meter of ordinary cement weigh 350#
15. How many square meters is a ton of sand Fine sand 1.4-1.9 (dry) There are also calculation methods and formulas
16. What are the functions of ground curing agent?
17. How many cubic meters is a ton of shale soil equal to
18. How many cubic meters is a ton equal to
19. Does the meter read that one cubic meter equals one ton of water?
20. How many cubic meters is a ton of cement equal to