## The value of R in SI units is :

a) $8.315*10^{7}erg K^{-1}mol^{-1}$ b) $8.315 JK^{-1}mol^{-1}$ c) $0.0815 litre atm K^{-1}mol^{-1}$ d) $2 calK^{-1}mol^{-1}$ Answer: b Explanation: In SI unit value of ...

## For an ideal gas, correct relation is

a) $\left[\frac{\delta E}{\delta V}\right]_{T}=0$ b) $\left[\frac{\delta E}{\delta T}\right]_{P}=0$ c) $\left[\frac{\delta E}{\delta T}\right]_{V}=0$ d) All of these Answer: ...

## If 300 ml of a gas at 27^0 C is cooled to 7^0 C at constant pressure, its final volume will be

If 300 ml of a gas at 270 C is cooled to 70 C at constant pressure, its ...

## “Equal volumes of all gases at the same temperature and pressure contain equal number of particles.” This statement is a direct consequece of

a) Perfect gas law b) Avogadro’s law c) Charle’s law d) Boyle’s law Answer: b Explanation: When P, V and ...

## Use of hot air balloons in sports and meteorological observations is an application of

a) Boyle’s law b) Charle’s law c) Kelvin’s law d) Gay-Lussac’s law Answer: b Explanation: Hot air is lighter due ...

## Air at sea level is dense. This is a practical application of

a) Boyle’s law b) Charle’s law c) Kelvin’s law d) Brown’s law Answer: a Explanation: d   $\propto$   p, Boyle’s ...

## When the product of pressure and volume is plotted against pressure for a given amount of the gas, the line obtained is

a) parallel to X-axis b) parallel to Y-axis c) linear with positive slope d) linear with negative slope Answer: ...

## If the four tubes of a car are filled to the same pressure with N2, O2, H2 and Ne separately, then which one will be filled first ?

If the four tubes of a car are filled to the same pressure with $N_{2},O_{2},H_{2} and Ne$   ...

## 4.4 g of a gas at STP occupies a volume of 2.24 L, the gas can

a) $O_{2}$ b) CO c) $NO_{2}$ d) $CO_{2}$ Answer: d Explanation: ...

## Which of the following is not held to be a quasi-judicial function

a) Determination of citizenship b) Disciplinary proceedings against students c) Determination of disqualification of members of parliament d) An order of preventive detention Answer: ...