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## Ideal Gas Equation MCQs

**1. If the pressure of dry gas is given by X and the total pressure is given by X + 3, then what is aqueous tension?**

a) 2

b) X

c) X + 2

d) 3

**Answer: ** 3

**2. In a cylinder of pressure 1 bar, there is the hydrogen of 20 grams and neon of 50 grams, what is a partial pressure of hydrogen?**

a) 0.2

b) 0.8

c) 0.4

d) 0.6

**Answer: ** 0.8

**3. If the partial pressure of oxygen is given by three bar and the partial pressure of the other gas is four bar, then what is a total pressure that is exerted?**

a) 7 bar

b) 3 bar

c) 4 bar

d) 1 bar

**Answer: ** 7 bar

**4. Who gave the law regarding the partial pressure?**

a) Charles

b) Dalton

c) Lussac

d) Thomas

**Answer: ** Dalton

**5. The partial pressure of a gas X is given by two bar, where is the total pressure of the gaseous mixture in a cylinder is 10 bar. What is the mole fraction of the gas X in that mixture?**

a) 0.5

b) 2

c) 0.2

d) 5

**Answer: ** 0.2

**6. In a balloon of total pressure 6 atm there is a gaseous composition of 44 grams of carbon dioxide 16 grams of by oxygen and 7 grams of nitrogen, what is the ratio of nitrogen partial pressure do the total pressure in the balloon?**

a) 0.25

b) 0.5

c) 0.75

d) 1

**Answer: ** 0.25

**7. Consider a gas of n moles at a pressure of P and a temperature of T in Celsius, what would be its volume?**

a) nR(T + 273)/p

b) nRT/p

c) nR(T – 273)/p

d) R(T + 273)/p

**Answer: ** nR(T + 273)/p

**8. What is the constant in ideal gas equation known as?**

a) Universal gas constant

b) Pressure constant

c) Temperature constant

d) Boltzmann constant

**Answer: ** Universal gas constant

**9. A certain gas occupies 200 ml of volume at 2 bar pressure at hundred degrees Kelvin. How much volume does it occupy at 5 bar pressure and 200 degrees Kelvin?**

a) 200 ml

b) 160 ml

c) 240 ml

d) 320 ml

**Answer: ** 160 ml

**10. Which of the following do you think is a correct relationship between the molar mass of gas temperature and its pressure?**

a) M = dRT/P

b) M = dRT/V

c) PV = nRT

d) M = VRT/P

**Answer: ** M = dRT/P