Thermal Propert...

If the volume of the gas is to be increased by 4 times :

A gas at temperature 27$$^{0}$$C and pressure 30 atmospheres is allowed to expand to one atmospheric pressure. If the volume becomes 10 times its initial volumes, the final temperature becomes :

When a body has the same temperature as that of its surroundings :

The Universal gas constant may be expressed as :

a) 8.31 J/mole-K         c) 2.00 J/mole-K

b) 8.31 cal/mole-K       d) 2.00 cal/mole-K

The parameter that determine the physical state of gas are :

a) Pressure                  b) Volume

c) Number of moles    d) Temperature

The temperature of a gas contained in a closed vessel is increased by 2 K when the pressure is increased by 2%. The initial temperature of the gas is :

16 gm of $$O_{2}$$ gas and x gm of $$H_{2}$$ gas occupy the same volume at the same temperature and pressure. Then x is :

The mass of oxygen gas (in Kilo grams) occupying a volume of 11.2 litre at a temperature 27$$^{0}$$C and a pressure of 76cm of mercury is :

(Molecular weight of oxygen = 32)

Select the correct formula :

(where k=Boltzmann's constant, R= gas constant, n= moles, r = density, M= molecular weight, p= pressure, T= kelvin temperature, V= volume)

a) k=RN$$_{av}$$

b)$$r=\dfrac{nM}{V}$$

c)$$\dfrac{p}{r}=\dfrac{RT}{M}$$

d) R=kN$$_{av}$$

In the equation PV=constant, the numerical value of constant depends upon

a) temperature                 b) mass of the gas

c) system of units used   d) nature of the gas