Question
One mole of any gas at standard temperature and pressure
contains a volume of________?Solution
One mole of any gas at standard temperature and pressure contains a volume of 22.4 litres. This is also known as Avagadro’s law. One mole of nitrogen gas occupies 22.4 litres of space and one mole of CO2 gas also occupies 22.4 litres of space. Therefore, 2 moles of nitrogen gas would occupy 44.8 litres of space Hence, option A is correct.
Select the correct combination of mathematical signs that can sequentially replace the “@” sign and balance the following equation.
12@5@7@2@...
If '+' means ' - ', ' X ' means '+', ' - ' means '÷' and '÷' means ' X ', then what is the value of the following expression?
112 - 4 + 65 X 22...
If ‘P’ means ‘+’, V means ‘×’, T means ‘-‘ and ‘Q’ means “÷’ , then find the value of the expression given below:
30 P ...
If ‘+’ means ‘-’, ‘×’ means ‘+’, ‘-’ means ‘÷’ and ‘÷’ means ‘×’, then what is the value of the following expression...
Select the correct combination of mathematical signs that can sequentially replace '*' sign and balance the equation given below.
432 * 6 * 9 * 1...
- If '+' means '-', ' X ' means '+', '-' means '÷' and '÷' means ' X ', then what is the value of the following expression?
32 ÷ 5 X 184 - 8 + 78 If 'A' means ' X ', 'B' means '÷', 'C' means '+' and 'D' means ' - ', then what will come in the place of '?' in the given expression?
200 B 8 C...
Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation.
48 * 14 * 7 * 11 * 4 = 89
If x stands for ‘addition’, ÷ stands for ‘subtraction’, + stands for ‘multiplication’, and – stands for ‘division’, then 30 x 40 – ...
What will be the value of expression if the numbers/digits ‘(42)’ and ‘(18)’ are interchanged?
54 ÷ 42 × 10 + 18 – 12 + 20
...
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