Cubical Expansion

Q. The coefficient of volume expansion of a solids is than the coefficient of linear expansion, for the same amount of heat.

1. greater
2. smaller
3. equal

Q.

The volume occupied by $10g$ of Oxygen at $0^{o}C$ and 2 atm pressure will be approximately______.

1. 20 L

2. 4.48 L

3. 3.5 L

4. 1.5 L

Q. The expansion in length of an object due to heat, is called

1. superficial expansion
2. chemical expansion
3. linear expansion
4. cubical expansion

Q. An antimony ball of volume $15{\text{cm}}^3$ is heated to $210{}^{\circ }\text{C}$ which caused the volume to become $15.045{\text{cm}}^3$, if $\gamma$ for antimony is $15\times {10}^{-6}{}^{\circ }{\text{C}}^{-1}$, what is the initial temperature of the ball?

1. 10

Q. A solid ball of metal has a concentric spherical cavity within it.
What change can you observe in the volume of the cavity when the ball is heated?

1. Volume of the cavity increases
2. Volume of the cavity remains same
3. Volume of the cavity reduces to half of it's initial volume
4. Volume of the cavity decreases

Q. The temperature of a thin wire of lead of length $5\text{cm}$ is raised by $150{}^{\circ }\text{C}$ which increases its length by about $0.2\text{mm}$. What is the coefficient of cubical expansion of lead?

1. $54\times {10}^{-6}{}^{\circ }{\text{C}}^{-1}$
2. $27\times {10}^{-6}{}^{\circ }{\text{C}}^{-1}$
3. $9\times {10}^{-6}{}^{\circ }{\text{C}}^{-1}$
4. $81\times {10}^{-6}{}^{\circ }{\text{C}}^{-1}$

Q. An antimony ball of volume $15{\text{cm}}^3$ is heated to $210{}^{\circ }\text{C}$ which caused the volume to become $15.045{\text{cm}}^3$, if $\gamma$ for antimony is $15\times {10}^{-6}{}^{\circ }{\text{C}}^{-1}$, what is the initial temperature of the ball?

1. $15{}^{\circ }\text{C}$
2. $30{}^{\circ }\text{C}$
3. $55{}^{\circ }\text{C}$
4. $10{}^{\circ }\text{C}$

Q. If there is an increase in the volume of a solid body due to heating, then the expansion is called_________.

1. linear expansion
2. cubical expansion
3. superficial expansion
4. areal expansion

Q.

A gas occupies a volume of $300cc$ at ${27}^{\circ }$C and $620mm$ pressure. Find the volume of the gas at ${47}^{\circ }$C and $640mm$.

1. $260cc$

2. $310cc$

3. $450cc$

4. $390cc$

Q. The density of a substance at ${20}^{0}Cand{120}^{0}C$ are $1.1g/ccand1g/cc$ respectively. The coefficient of cubical expansion of the solid is.

1. $\frac{0.001}{{}^{0}C}$
2. $\frac{0.002}{{}^{0}C}$
3. $\frac{0.003}{{}^{0}C}$
4. $\frac{0.004}{{}^{0}C}$

Q. A cubical metal block, on heating, will experience only superficial expansion.

1. True
2. False

Q. When a flat sheet of copper is heated , the increase in its area is called cubical expansion.

1. True
2. False

Q.

The pressure of $2L$ of $O_2$ gas is doubled when its temperature is increased from 300 K to 600 K. Find the final volume of the gas.

1. 4 litres

2. 20 litres

3. 2 litres

4. 40 litres