# On $$0^{\circ}\text{C}$$, the pressure measured by the barometer is $$760$$ mm.  What will be pressure at $$100^{\circ}\text{C}$$? 1. $$760~\text{mm}$$ 2. $$730~\text{mm}$$ 3. $$780~\text{mm}$$ 4. None of these

Subtopic:  Ideal Gas Equation |
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By what percentage, should the pressure of a given mass of gas be increased, so as to decrease its volume by 10% at a constant temperature?

1. 5%

2. 7.2 %

3. 12.5%

4. 11.1%

Subtopic:  Ideal Gas Equation |
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In the adjacent V-T diagram what is the relation between  ?

1. ${P}_{2}={P}_{1}$

2. ${P}_{2}>{P}_{1}$

3. ${P}_{2}<{P}_{1}$

4. cannot be predicated

Subtopic:  Ideal Gas Equation |
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Which one of the following graph is correct at constant pressure?

 1 2 3 4
Subtopic:  Ideal Gas Equation |
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The root-mean-square velocity of the molecules in a sample of helium is $\frac{5}{7}th$ of that of the molecules in a sample of hydrogen.  If the temperature of the hydrogen gas is 0$°$C, that of the helium sample is about:

1. 0$°$C

2. 5.6$°$C

3. 273$°$C

4. 100$°$C

Subtopic:  Types of Velocities |
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The kinetic energy of one gram molecule of a gas at standard temperature and pressure is: (R = 8.31 J/mol-K)

1. 0.56

2.

3.

4.

Subtopic:  Kinetic Energy of an Ideal Gas |
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Gases exert pressure on the walls of containing vessel because  the gas molecules:

1. Possess momentum

2. collide with each other

3. have finite volume

4. obey gas laws

Subtopic:  Kinetic Energy of an Ideal Gas |
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The equation of state for 5 g of oxygen at a pressure P and temperature T, when occupying a volume V, will be: (where R is the constant)

1. PV = 5RT

2. PV = $\left(\frac{5}{2}\right)RT$

3. PV = $\left(\frac{5}{16}\right)RT$

4. PV = $\left(\frac{5}{32}\right)RT$

Subtopic:  Ideal Gas Equation |
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The equation $\left(p+\frac{a}{{v}^{2}}\right)\left(v-b\right)=RT$ is known as:

1. Perfect gas equation

2. Joule Thomson's equation

3. Vander Waal's equation

4. Maxwell's equation

Subtopic:  Ideal Gas Equation |
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The temperature of an ideal gas is increased from $27°$ to $927°C$. The r.m.s. speed of its molecules becomes-

1. twice

2. half

3. four times

4. one fourth

Subtopic:  Types of Velocities |
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