## Ideal gas equation MCQ Basic Level

Compared to other sections, Chemistry is considered to be the most scoring section. If prepared thoroughly, chemistry can help students to secure a meritorious position in the exam. These questions are very important in achieving your success in Exams after 12th.

Q1. In the ideal gas equation, the gas constant R has the dimensions of

•  mole-atm K-1
•  litre mole
•  litre-atm K-1 mole-1
•  erg K-1

litre-atm K-1 mole-1

Q2. The constant R is

•  Work done per molecule
•  Work done per degree absolute
•  Work done per degree per mole
•  Work done per mole

Work done per degree per mole

Q3. Select one correct statement. In the gas equation, PV = nRT

•  n is the number of molecules of a gas
•  V denotes volume of one mole of the gas
•  n moles of the gas have a volume V
•  P is the pressure of the gas when only one mole of gas is present

n moles of the gas have a volume V

Q4. Gas equation PV= nRT is obeyed by

•  Only isothermal process
•  Both (a) and (b)
•  None of these

Both (a) and (b)

Q5. For an ideal gas number of moles per litre in terms of its pressure P, gas constant R and temperature T is

•  PT/R
•  PRT
•  P/RT
•  RT/P

P/RT

Q6. If two moles of an ideal gas at 546 K occupy a volume of 44.8 litres, the pressure must be

•  2 atm
•  3 atm
•  4 atm
•  1 atm

2 atm

Q7. Volume of 0.5 mole of a gas at 1 atm. pressure and 273K is

•  22.4 litres
•  11.2 litres
•  44.8 litres
•  5.6 litres

22.4 litres

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