Measurement of Volume

Q.

What molarity is $10\%$ $\mathrm{NaOH}$?

Q. Given that equilibrium constant for the reaction 2so2+o2__2so3 Has a value of 278k at a particular temperature what is the equilibrium. Constant for the following reaction at the same temparaure So3____so2+12o2

Q.

What happens when a reaction reaches Equilibrium?

Q.

Consider the following gaseous equilibria given below:

1. ${\mathrm{N}}_2+3{\mathrm{H}}_2\rightleftharpoons 2{\mathrm{NH}}_3$; Eqm. Constant = ${\mathrm{K}}_1$
2. ${\mathrm{N}}_2+{\mathrm{O}}_2\rightleftharpoons 2\mathrm{NO}$; Eqm. constant = ${\mathrm{K}}_2$
3. ${\mathrm{H}}_2+\frac{1}{2}{\mathrm{O}}_2\rightleftharpoons {\mathrm{H}}_2\mathrm{O}$; Eqm. constant= ${\mathrm{K}}_3$

The Equilibrium constant for the reaction: $2{\mathrm{NH}}_3+\frac{5}{2}{\mathrm{O}}_2\rightleftharpoons 2\mathrm{NO}+3{\mathrm{H}}_2\mathrm{O}$, In Terms of ${\mathrm{K}}_1$, ${\mathrm{K}}_2$ and ${\mathrm{K}}_3$will be _________.

Q.

Kilograms per cubic-meter is the unit of ___ .

Q. Every physical quantity has to have a dimension. True or false?

1. True
2. False

Q.

Identify the intensive property from the following:

1. Volume

2. Mass

3. Enthalpy

4. Temperature

Q.

How do you convert milliliters to liters?

Q. How to convert celcius or Fahrenheit to kelvin

Q.

10g of hydrogen and 64g of oxygen were filled in a steel vessel and exploded. The amount of water produced in this reaction will be____________.

1. 2 mole

2. 3 mole

3. 4 mole

4. 1 mole

Q. The space occupied by the object is called _______

Q. The volume of a gas is ______ time the initial volume when the pressure is reduced to half and the absolute temperature is doubled.

Q.

Cubic-meter is the unit of ___ .

Q.

The Volume of Oxygen ${\mathrm{O}}_2$liberated at STP when $100$ ml of $15$ Volume ${\mathrm{H}}_2{\mathrm{O}}_2$ decomposes is:

1. $150$ml

2. $300$ml

3. $1500$ml

4. $2000$ml

Q. Equal masses of $H_2,O_2$ and methane have been taken in a container of volume V at temperature ${27}^{o}C$ in identical conditions. The ratio of the volumes of gases $H_2:O_2$: methane would be___________.

1. 8:16:1
2. 16:1:2
3. 8:1:2
4. 16:8:1

Q.

What volume of Sulphur dioxide (at s.t.p) would be liberated by roasting 30 g of pyrites?

Q. The volume of a gas at $0^{\circ }C$ and $700mm$ pressure is $760cc$. The no. of molecules present in this volume is_____________.

1. $6.022\times {10}^{23}$
2. $1.88\times {10}^{22}$
3. $18.8\times {10}^{23}$
4. $18.8\times {10}^{22}$

Q. What is the volume of the given cuboid? Area of each side of smaller cube is $1c{m}^2$.

1. $5c{m}^3$
2. $6c{m}^3$
3. $7c{m}^3$
4. $8c{m}^3$

Q. $16g$ of oxygen and $3g$ of hydrogen are mixed and kept at $760mm$ pressure and $0^{\circ }C$. The total volume occupied by the mixture will be nearly.

1. $33.6L$
2. $44.8L$
3. $4480mL$
4. $22.4L$

Q. $2gm$ of $O_2$ at ${27}^o$C and $760mm$ of $Hg$ pressure has volume?

1. 1.4 lit
2. 2.8 lit
3. 11.2 lit
4. 22.4 lit

Q.

Fill in the blank

2. The space occupied by an object is called its___________.

Q.

what is K_c for the reaction

Fe³⁺(aq) + 3OH^-(aq) Fe(OH)₃ (s)

Q.

The value of equilibrium constant for a reversible reaction is $3\times {10}^{-2}$. If the reaction quotient for the same reaction is $5\times {10}^{-3}$, predict the direction of equilibrium reaction.

Q. Water and chlorobenzene are immiscible liquids. Their mixture boils at ${89}^{o}C$ under a reduced pressure of $7.7\times {10}^{4}Pa$. The vapour pressure of pure water at ${89}^{o}C$ is $7\times {10}^{4}Pa$. Weight percent of chlorobenzene in the distillate is:

1. $38.46$
2. $50$
3. $60$
4. $78.3$

Q. 896ml or a mixture of co and co2 weigh 1.28g at NTP.calculate the volume of co2 in mixture at NTP

Q. The capacity of a cuboidal tank is $50000\text{litres}$ of water. Find the breadth of the tank, if its length and depth are $2.5m$ and $10m$ respectively.

1. $2cm$
2. $20cm$
3. $200cm$
4. $2m$

Q. Which is the correct form of expressing SI unit of volume?

1. $m^3$
2. $cubicmetre$
3. ${metre}^3$
4. all of these

Q. The pressure of the gas was found to decrease from $720$ to $480mm$. When $5g$ of the sample of activated charcoal was kept in a flask of one litre capacity maintained at ${27}^{\circ }C$. If the density of charcoal at $1.25gm/mL$. The volume of gas adsorbed per gm of charcoal at $480mm$ of $Hg$ is:

1. $80.03mL$
2. $32.20mL$
3. $100.08mL$
4. None of these

Q.

Centimeter cube and milliliter are units of:

1. volume

2. density

3. length

4. area

Q.

A reaction with reaction equilibrium qotient Q_c and equilibrium constant K_c, will proceed in the direction of the product when

a. Q_c=K_c

b Q_cc

c Q_cK_c

d Q_c=0