Charles' Law

Q.

To what temperature a gas at 227°C must be cooled such that its volume is reduced to 1/5 of the initial volume pressure remaining constant?

Q.

A balloon is filled with hydrogen at room temperature. It will burst if the pressure exceeds 0.2 bar. If at 1 bar pressure the gas occupies 2.27 L volume. Up to what volume can the balloon be expanded?

1. 10.35 L

2. 9.35 L

3. 11.35 L

4. 0.454 L

Q. A certain volume of the gas is kept as 77°C. When the temperature is decreased by 20°C the gas occupies a volume of 900 ml. What was the initial volume of the gas? [pressure constant]

Q. A balloon has volume 350 L at 1.00 atm pressure.Its volume at constant temperature and 0.80 atm pressure will be (1)427.5 L (2)437.5 L (3)347.5 L (4)22.4 L

Q.

An ideal gas at 1 bar is heated from 273 K to 373 K at constant pressure. If its initial volume is 5.46 L, what will be the final volume?

1. 7.46 L
2. 1.865 L
3. 5.46 L
4. 6 L

Q. A sample of a gas occupies $600mL$ at ${27}^{\circ }C$ and $1atm$. What will be the volume at ${127}^{\circ }C$ if the pressure is kept constant?

Q. At 27∘C, a balloon is filled with 3 L air. The volume of the balloon when the temperature is 54∘C is .

1. 3.27 L
2. 2.75 L
3. 1.5 L
4. 6 L

Q.

The graph plot between log V and log T according to Charles Law will be:

1. 

2. 

3. 

4. 

Q. At 27∘C, a balloon is filled with 3 L air. The volume of the balloon when the temperature is 54∘C is .

1. 3.27 L
2. 2.75 L
3. 1.5 L
4. 6 L

Q. At 2 atm pressure and $0°C$ temperature volume of a gas of fixed mass is 500 cc. Keeping pressure constant if the temperature has been rised to $273°C$, what will be the volume of the gas?

Q. Assertion :Volume: temperature ratio is constant for a fixed amount of gas at constant pressure. Reason: At constant pressure the volume of a given mass of a gas increases or decreases by $1/273$ of its volume at $0^{o}C$

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. A tube of length 50 cm is containing a gas in two sections separated by a mercury coloumn of length 10 cm as shown in figure. The open end of tube is just inside the Hg surface in container find pressure of gas in two sections. [Assume atmospheric pressure = 75 cm of Hg column]

1. Pressure in the lower half of gas = P${}_0$ = 75 cm of Hg column
   Pressure of gas in upper half m of the column - (75 - 10) = 65 cm of Hg
2. Pressure in lower half of gas = P${}_0$ = 85 cm of Hg column
   Pressure of gas in upper half m of the column - (85 - 10) = 75 cm of Hg
3. Pressure in the lower half of gas = P${}_0$ = 65 cm of Hg column
   Pressure of gas in upper half m of the column - (65 - 10) = 55 cm of Hg
4. Pressure in the lower half of gas = P${}_0$ = 95 cm of Hg column
   Pressure of gas in upper half m of the column - (95 - 10) = 85 cm of Hg