Charles' Law

Q. A gas at a pressure of 5 atm is heated from 0^° to546^° C and simultaneously compressed to rd ofits original volume. Hence final pressure is(1) 10 atm(2) 45 atm(3) 30 atm(4) 5 atm

Q. 35. A cylinder was filled with gaseous mixtures containing CO and N_2(equal masses). What is the ratio of their partial pressure in cylinder?

Q. The correct graph among the following given, if $T_1>T_2>T_3$ is:

1. 
   
2. 
3. 
4. All of the above

Q. An Ideal Gas at 1 bar is heated from $O^{o}C$ to 373K. If its initial volume is 5.46L, the final volume could be

1. 7.46L

2. 1.865L

3. 5.46L

4. 6L

Q.

The vapour pressure of a liquid depends upon:

1. Volume of liquid

2. Surface area of liquid

3. Nature of liquid

4. Density of liquid

Q. A 15 L cylinder of He gas is connected to an evacuated 235 L †an k.if the final pressure is 750 mm Hg.then what have been the original gas pressure in the cylinder

Q. On a ship sailing in the Pacific ocean, where the temperature is ${23.4}^{\circ }\text{C}$, a balloon is filled with $2\text{L}$ of air. What will be the volume of the balloon when the ship reaches the Indian ocean, where the temperature is ${26.1}^{\circ }\text{C}$?

1. $2.018\text{L}$
2. $4.036\text{L}$
3. $8.72\text{L}$
4. $9.5\text{L}$

Q. 24. Which graphs not straight line for ideal gas? a)V versus T(n and p constant) b)T versus p(n and V constant) c)p versus 1/V ( n and T constant) d) n versus 1/p(V and T constant)

Q.

Volume occupied by a gas at one atmospheric pressure and 0${}^{\circ }$ C is V ml. Its volume at 273 K will be

1. V ml

2. $\frac{V}{2}$ ml

3. 2V

4. None of these

Q. An ideal gas is initially at temperature $T$ and volume $V$ and at constant pressure, its volume increases by $\Delta V$ due to an increase in temperature by $\Delta T$. The quantity $\mu =\Delta V/V\Delta T$ varies with temperature as:

1. 
2. 
3. 
4. 

Q. 21. What is R in Ideal gas equation?

Q.

On a ship sailing in the Pacific ocean, where the temperature is 23.4${}^{\circ }$C, a balloon is filled with 2 L air. What will be the volume of the balloon when the ship reaches the Indian ocean where the temperature is 26.1${}^{\circ }$C ?

1. 2.02 L

2. 1.96 L

3. 1.88L

4. 2.42 L

Q. What is ideal gas equation? What are the units used in this equation?

Q. At what temperature, the volume of 'V' of a certain mass of a gas at ${37}^{o}C$ will be doubled, keeping the pressure constant?

1. ${327}^{o}C$

2. ${347}^{o}C$

3. ${527}^{o}C$

4. ${54}^{o}C$

Q. Which of the following is the correct mathematical representation of Charles's law?

1. $\frac{V_1}{T_2}=\frac{V_2}{T_1}$
2. $\frac{V_1}{T_1}=\frac{V_2}{T_2}$
3. $V_1=2T_2$
4. $V_2=2T_2$

Q. Which of the following volume $\left(V\right)$-temperature $\left(T\right)$ plots represents the behaviour of one mole of an ideal gas at one atmospheric pressure?

1. 
2. 
3. 
4. 

Q. A sample of an ideal gas occupies $20\text{L}$ under a pressure of 0.5 atm. Under isothermal conditions, on increasing its pressure to 1.0 atm, its volume will be:

1. $2.5\text{L}$
2. $20\text{L}$
3. $5\text{L}$
4. $10\text{L}$

Q. The correct mathematical representation of Charles' law is
$\frac{V_1}{T_1}=\frac{V_2}{T_2}$

1. False
2. True

Q.

A flask having a volume of 250 mL and containing air is heated to 100${}^{\circ }$C and sealed. Then the flask is cooled to 25${}^{\circ }$C, immersed in water, and opened. What volume of water will be drawn back into the flask, assuming the pressure remaining constant?

1. 55.27 $c{m}^3$

2. 63.24 $c{m}^3$

3. 72.32 $c{m}^3$

4. 50.27 $c{m}^3$

Q.

The graph plot between log V and log T according to Charle's Law will be:

1. 

2. 

3. 

4. ​

Q. The following graph is constructed for a fixed amount of gas. Which of the following options are correct:

1. From 1-2, pressure will increase
2. From 2-3, pressure remains constant
3. Gas pressure at point 3 is greater than point 1
4. From 1-2, pressure will decrease

Q.

Volume of the air that will be expelled from a vessel of 300 ${cm}^3$ when it is heated from ${27}^{\circ }$C to ${37}^{\circ }$C at the same pressure will be

1. 310 ${cm}^3$

2. 290 ${cm}^3$

3. 10 ${cm}^3$

4. 37 ${cm}^3$

Q. The use of hot air in sports and meterological observations is an application of:

1. Boyle's law
2. Charles' law
3. Avogadro's law
4. Gay-Lussac's law

Q. An open flask containing air is heated from $300\text{K}$ to $500\text{K}$. What percentage of air would escape into the atmosphere if the pressure is kept constant?

1. 80
2. 40
3. 60
4. 20

Q.

For any liquid, vapor pressure increases with increase in

1. external pressure

2. temperature

3. volume

4. density of liquid

Q. A balloon is filled with 2 L of air at 300 K. will be the volume of the balloon at 600 K.

1. 2 L
2. 3 L
3. 4 L

Q. A gas occupies volume of $580mL$ at $17{}^{o}C.$ It is heated to $100{}^{o}C$ at constant pressure. Calculate the final volume of the gas -

1. $746mL$
2. $760mL$
3. $773mL$
4. $780mL$

Q. A balloon blown up with $1$ mole of a gas, has a volume of $480\text{mL}$ to $5^{\circ }C$. If the balloon is filled to $\left(\frac{7}{8}\right)th$ of its maximum capacity, then which of the following options is/are correct ?

1. The balloon will burst at ${30}^{\circ }C$
2. The pressure of the gas inside the balloon at $5^{\circ }C$ is 47.5 atm
3. The minimum temperature at which the balloon will burst is ${44.71}^{\circ }C$
4. The pressure of gas when balloon burst at minimum temperature is 50 atm

Q. For a monoatomic gas, the molar specific heat at constant pressure divided by the molar gas constant $R$ is equal to

1. $2.5$
2. $1.5$
3. $5.0$
4. $3.5$
5. $4.0$

Q. For a fixed mass of a gas at constant pressure, which of the following statement(s) is/are not correct?

1. Plot of volume versus temperature ${(}^{\circ }\text{C})$ is linear with intercept zero
2. Plot of volume versus temperature (K) is linear with a non-zero intercept
3. Plot of V/T versus T is linear with a positive slope
4. Plot of V/T versus T is linear with a zero slope