01. Change of State, Type of System
Thermodynamics

148181 1 cc of water becomes 1681 cc of steam when boiled at a pressure of $10^{5} \mathrm{Nm}^{-2}$. The increasing internal energy of the system is
(Latent heat of steam is $540 \mathrm{cal} \mathrm{g}^{-1}, 1 \mathrm{cal}=4.2 \mathrm{~J}$ )

1 $300 \mathrm{cal}$
2 $500 \mathrm{cal}$
3 $225 \mathrm{cal}$
4 $600 \mathrm{cal}$
5 $1000 \mathrm{cal}$
Thermodynamics

148182 A block of ice at temperature $-20^{\circ} \mathrm{C}$ is slowly heated and converted to steam at $100^{\circ} \mathrm{C}$. Which of the following diagram is most appropriate?

1
2
3
4
Thermodynamics

148185 A metal rod of length $10 \mathrm{~cm}$ and area of crosssection $2.8 \times 10^{-4} \mathrm{~m}^{2}$ is covered with nonconducting substance. One end of it is maintained at $80^{\circ} \mathrm{C}$, while the other end is put in ice at $0^{\circ} \mathrm{C}$. It is found that $20 \mathrm{gm}$ of ice melts in 5 min. The thermal conductivity of the metal in $\mathrm{Js}^{-1} \mathrm{~m}^{-1} \mathrm{~K}^{-1}$ is (Latent heat of ice is $80 \mathrm{cal} \mathrm{g}^{-1}$ ).

1 70
2 80
3 90
4 100
Thermodynamics

148186 $1 \mathrm{~g}$ of water at atmospheric pressure has volume of $1 \mathrm{cc}$ and when boiled it becomes $1681 \mathrm{cc}$ of steam. The heat of vaporisation of water is $540 \mathrm{cal} / \mathrm{g}$. Then the change in its internal energy in this process is

1 $540 \mathrm{cal}$
2 $500 \mathrm{cal}$
3 $1681 \mathrm{cal}$
4 None of above
Thermodynamics

148188 $1 \mathrm{~g}$ of steam at $100^{\circ} \mathrm{C}$ and equal mass of ice at $0^{\circ} \mathrm{C}$ are mixed. The temperature of the mixture in steady state will be (latent heat of steam $=$ $540 \mathrm{cal} / \mathrm{g}$, latent heat of ice $=80 \mathrm{cal} / \mathrm{g})$ :

1 $50^{\circ} \mathrm{C}$
2 $100^{\circ} \mathrm{C}$
3 $67^{\circ} \mathrm{C}$
4 $33^{\circ} \mathrm{C}$
Thermodynamics

148181 1 cc of water becomes 1681 cc of steam when boiled at a pressure of $10^{5} \mathrm{Nm}^{-2}$. The increasing internal energy of the system is
(Latent heat of steam is $540 \mathrm{cal} \mathrm{g}^{-1}, 1 \mathrm{cal}=4.2 \mathrm{~J}$ )

1 $300 \mathrm{cal}$
2 $500 \mathrm{cal}$
3 $225 \mathrm{cal}$
4 $600 \mathrm{cal}$
5 $1000 \mathrm{cal}$
Thermodynamics

148182 A block of ice at temperature $-20^{\circ} \mathrm{C}$ is slowly heated and converted to steam at $100^{\circ} \mathrm{C}$. Which of the following diagram is most appropriate?

1
2
3
4
Thermodynamics

148185 A metal rod of length $10 \mathrm{~cm}$ and area of crosssection $2.8 \times 10^{-4} \mathrm{~m}^{2}$ is covered with nonconducting substance. One end of it is maintained at $80^{\circ} \mathrm{C}$, while the other end is put in ice at $0^{\circ} \mathrm{C}$. It is found that $20 \mathrm{gm}$ of ice melts in 5 min. The thermal conductivity of the metal in $\mathrm{Js}^{-1} \mathrm{~m}^{-1} \mathrm{~K}^{-1}$ is (Latent heat of ice is $80 \mathrm{cal} \mathrm{g}^{-1}$ ).

1 70
2 80
3 90
4 100
Thermodynamics

148186 $1 \mathrm{~g}$ of water at atmospheric pressure has volume of $1 \mathrm{cc}$ and when boiled it becomes $1681 \mathrm{cc}$ of steam. The heat of vaporisation of water is $540 \mathrm{cal} / \mathrm{g}$. Then the change in its internal energy in this process is

1 $540 \mathrm{cal}$
2 $500 \mathrm{cal}$
3 $1681 \mathrm{cal}$
4 None of above
Thermodynamics

148188 $1 \mathrm{~g}$ of steam at $100^{\circ} \mathrm{C}$ and equal mass of ice at $0^{\circ} \mathrm{C}$ are mixed. The temperature of the mixture in steady state will be (latent heat of steam $=$ $540 \mathrm{cal} / \mathrm{g}$, latent heat of ice $=80 \mathrm{cal} / \mathrm{g})$ :

1 $50^{\circ} \mathrm{C}$
2 $100^{\circ} \mathrm{C}$
3 $67^{\circ} \mathrm{C}$
4 $33^{\circ} \mathrm{C}$
Thermodynamics

148181 1 cc of water becomes 1681 cc of steam when boiled at a pressure of $10^{5} \mathrm{Nm}^{-2}$. The increasing internal energy of the system is
(Latent heat of steam is $540 \mathrm{cal} \mathrm{g}^{-1}, 1 \mathrm{cal}=4.2 \mathrm{~J}$ )

1 $300 \mathrm{cal}$
2 $500 \mathrm{cal}$
3 $225 \mathrm{cal}$
4 $600 \mathrm{cal}$
5 $1000 \mathrm{cal}$
Thermodynamics

148182 A block of ice at temperature $-20^{\circ} \mathrm{C}$ is slowly heated and converted to steam at $100^{\circ} \mathrm{C}$. Which of the following diagram is most appropriate?

1
2
3
4
Thermodynamics

148185 A metal rod of length $10 \mathrm{~cm}$ and area of crosssection $2.8 \times 10^{-4} \mathrm{~m}^{2}$ is covered with nonconducting substance. One end of it is maintained at $80^{\circ} \mathrm{C}$, while the other end is put in ice at $0^{\circ} \mathrm{C}$. It is found that $20 \mathrm{gm}$ of ice melts in 5 min. The thermal conductivity of the metal in $\mathrm{Js}^{-1} \mathrm{~m}^{-1} \mathrm{~K}^{-1}$ is (Latent heat of ice is $80 \mathrm{cal} \mathrm{g}^{-1}$ ).

1 70
2 80
3 90
4 100
Thermodynamics

148186 $1 \mathrm{~g}$ of water at atmospheric pressure has volume of $1 \mathrm{cc}$ and when boiled it becomes $1681 \mathrm{cc}$ of steam. The heat of vaporisation of water is $540 \mathrm{cal} / \mathrm{g}$. Then the change in its internal energy in this process is

1 $540 \mathrm{cal}$
2 $500 \mathrm{cal}$
3 $1681 \mathrm{cal}$
4 None of above
Thermodynamics

148188 $1 \mathrm{~g}$ of steam at $100^{\circ} \mathrm{C}$ and equal mass of ice at $0^{\circ} \mathrm{C}$ are mixed. The temperature of the mixture in steady state will be (latent heat of steam $=$ $540 \mathrm{cal} / \mathrm{g}$, latent heat of ice $=80 \mathrm{cal} / \mathrm{g})$ :

1 $50^{\circ} \mathrm{C}$
2 $100^{\circ} \mathrm{C}$
3 $67^{\circ} \mathrm{C}$
4 $33^{\circ} \mathrm{C}$
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
Thermodynamics

148181 1 cc of water becomes 1681 cc of steam when boiled at a pressure of $10^{5} \mathrm{Nm}^{-2}$. The increasing internal energy of the system is
(Latent heat of steam is $540 \mathrm{cal} \mathrm{g}^{-1}, 1 \mathrm{cal}=4.2 \mathrm{~J}$ )

1 $300 \mathrm{cal}$
2 $500 \mathrm{cal}$
3 $225 \mathrm{cal}$
4 $600 \mathrm{cal}$
5 $1000 \mathrm{cal}$
Thermodynamics

148182 A block of ice at temperature $-20^{\circ} \mathrm{C}$ is slowly heated and converted to steam at $100^{\circ} \mathrm{C}$. Which of the following diagram is most appropriate?

1
2
3
4
Thermodynamics

148185 A metal rod of length $10 \mathrm{~cm}$ and area of crosssection $2.8 \times 10^{-4} \mathrm{~m}^{2}$ is covered with nonconducting substance. One end of it is maintained at $80^{\circ} \mathrm{C}$, while the other end is put in ice at $0^{\circ} \mathrm{C}$. It is found that $20 \mathrm{gm}$ of ice melts in 5 min. The thermal conductivity of the metal in $\mathrm{Js}^{-1} \mathrm{~m}^{-1} \mathrm{~K}^{-1}$ is (Latent heat of ice is $80 \mathrm{cal} \mathrm{g}^{-1}$ ).

1 70
2 80
3 90
4 100
Thermodynamics

148186 $1 \mathrm{~g}$ of water at atmospheric pressure has volume of $1 \mathrm{cc}$ and when boiled it becomes $1681 \mathrm{cc}$ of steam. The heat of vaporisation of water is $540 \mathrm{cal} / \mathrm{g}$. Then the change in its internal energy in this process is

1 $540 \mathrm{cal}$
2 $500 \mathrm{cal}$
3 $1681 \mathrm{cal}$
4 None of above
Thermodynamics

148188 $1 \mathrm{~g}$ of steam at $100^{\circ} \mathrm{C}$ and equal mass of ice at $0^{\circ} \mathrm{C}$ are mixed. The temperature of the mixture in steady state will be (latent heat of steam $=$ $540 \mathrm{cal} / \mathrm{g}$, latent heat of ice $=80 \mathrm{cal} / \mathrm{g})$ :

1 $50^{\circ} \mathrm{C}$
2 $100^{\circ} \mathrm{C}$
3 $67^{\circ} \mathrm{C}$
4 $33^{\circ} \mathrm{C}$
Thermodynamics

148181 1 cc of water becomes 1681 cc of steam when boiled at a pressure of $10^{5} \mathrm{Nm}^{-2}$. The increasing internal energy of the system is
(Latent heat of steam is $540 \mathrm{cal} \mathrm{g}^{-1}, 1 \mathrm{cal}=4.2 \mathrm{~J}$ )

1 $300 \mathrm{cal}$
2 $500 \mathrm{cal}$
3 $225 \mathrm{cal}$
4 $600 \mathrm{cal}$
5 $1000 \mathrm{cal}$
Thermodynamics

148182 A block of ice at temperature $-20^{\circ} \mathrm{C}$ is slowly heated and converted to steam at $100^{\circ} \mathrm{C}$. Which of the following diagram is most appropriate?

1
2
3
4
Thermodynamics

148185 A metal rod of length $10 \mathrm{~cm}$ and area of crosssection $2.8 \times 10^{-4} \mathrm{~m}^{2}$ is covered with nonconducting substance. One end of it is maintained at $80^{\circ} \mathrm{C}$, while the other end is put in ice at $0^{\circ} \mathrm{C}$. It is found that $20 \mathrm{gm}$ of ice melts in 5 min. The thermal conductivity of the metal in $\mathrm{Js}^{-1} \mathrm{~m}^{-1} \mathrm{~K}^{-1}$ is (Latent heat of ice is $80 \mathrm{cal} \mathrm{g}^{-1}$ ).

1 70
2 80
3 90
4 100
Thermodynamics

148186 $1 \mathrm{~g}$ of water at atmospheric pressure has volume of $1 \mathrm{cc}$ and when boiled it becomes $1681 \mathrm{cc}$ of steam. The heat of vaporisation of water is $540 \mathrm{cal} / \mathrm{g}$. Then the change in its internal energy in this process is

1 $540 \mathrm{cal}$
2 $500 \mathrm{cal}$
3 $1681 \mathrm{cal}$
4 None of above
Thermodynamics

148188 $1 \mathrm{~g}$ of steam at $100^{\circ} \mathrm{C}$ and equal mass of ice at $0^{\circ} \mathrm{C}$ are mixed. The temperature of the mixture in steady state will be (latent heat of steam $=$ $540 \mathrm{cal} / \mathrm{g}$, latent heat of ice $=80 \mathrm{cal} / \mathrm{g})$ :

1 $50^{\circ} \mathrm{C}$
2 $100^{\circ} \mathrm{C}$
3 $67^{\circ} \mathrm{C}$
4 $33^{\circ} \mathrm{C}$