02. Specific heat capacity, Latent Heat and Calorimetry
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Thermal Properties of Matter

146657 A wire of $20 \Omega$ is immersed in ice. If $10 \mathrm{~A}$ current is passed through this wire for 1 minute, ice completely melts. The mass of the ice is nearly $\left(L_{\text {ice }}=79.7 \mathrm{calg}^{-1}\right)$

1 $3.5 \mathrm{~g}$
2 $359 \mathrm{~g}$
3 $540 \mathrm{~g}$
4 $3.5 \mathrm{~kg}$
AP EAMCET (23.04.2018) Shift-2
Thermal Properties of Matter

146658 Match the following List-I with List-II
| |List-I | | List-II |
| :--- | :--- | :--- | :--- | :--- |
| A | When ice melts into water | I | Volume increase |
| B | When water changes into steam | II | Volume decrease |
| C | Melting point of ice | III | Increases with increase of pressure |
| D | Boiling point of water | IV | Decreases with increase in pressure |

1 A - I,B - II,C - III ,D -IV
2 A - II,B - I ,C - IV ,D -III
3 A - III,B - II ,C - IV,D - I
4 A - II,B - I ,C - III ,D -IV
AP EAMCET (22.04.2018) Shift-II
Thermal Properties of Matter

146659 Water of volume 2 litre in a container is heated with a coil of $1 \mathrm{~kW}$ at $27^{\circ} \mathrm{C}$. The lid of the container is open and energy dissipates at rate of $160 \mathrm{~J} / \mathrm{s}$. In how much time temperature will rise from $27^{\circ} \mathrm{C}$ to $77^{\circ} \mathrm{C}$ ? [Given specific heat of water is $4.2 \mathrm{~kJ} / \mathrm{kg}$ ]

1 $8 \min 20 \mathrm{~s}$
2 $6 \min 2 \mathrm{~s}$
3 $7 \mathrm{~min}$
4 $14 \mathrm{~min}$
BITSAT-2018
Thermal Properties of Matter

146660 Find the quantity of heat required to convert $40 \mathrm{gm}$ of ice at $-20^{\circ} \mathrm{C}$ into water at $20^{\circ} \mathrm{C}$. Given $\mathrm{L}_{\text {ice }}=0.336 \times 10^{6} \mathrm{~J} / \mathrm{kg}$.
Sp heat of ice $=2100 \mathrm{~J} / \mathrm{kg}-\mathrm{K}$ sp heat of water $=$ $4200 \mathrm{~J} / \mathrm{kg}-\mathrm{K}$

1 $12480 \mathrm{~J}$
2 $10420 \mathrm{~J}$
3 $16450 \mathrm{~J}$
4 $18480 \mathrm{~J}$
BITSAT-2005
NEET DIGITAL LIBRARY
Thermal Properties of Matter

146657 A wire of $20 \Omega$ is immersed in ice. If $10 \mathrm{~A}$ current is passed through this wire for 1 minute, ice completely melts. The mass of the ice is nearly $\left(L_{\text {ice }}=79.7 \mathrm{calg}^{-1}\right)$

1 $3.5 \mathrm{~g}$
2 $359 \mathrm{~g}$
3 $540 \mathrm{~g}$
4 $3.5 \mathrm{~kg}$
AP EAMCET (23.04.2018) Shift-2
Thermal Properties of Matter

146658 Match the following List-I with List-II
| |List-I | | List-II |
| :--- | :--- | :--- | :--- | :--- |
| A | When ice melts into water | I | Volume increase |
| B | When water changes into steam | II | Volume decrease |
| C | Melting point of ice | III | Increases with increase of pressure |
| D | Boiling point of water | IV | Decreases with increase in pressure |

1 A - I,B - II,C - III ,D -IV
2 A - II,B - I ,C - IV ,D -III
3 A - III,B - II ,C - IV,D - I
4 A - II,B - I ,C - III ,D -IV
AP EAMCET (22.04.2018) Shift-II
Thermal Properties of Matter

146659 Water of volume 2 litre in a container is heated with a coil of $1 \mathrm{~kW}$ at $27^{\circ} \mathrm{C}$. The lid of the container is open and energy dissipates at rate of $160 \mathrm{~J} / \mathrm{s}$. In how much time temperature will rise from $27^{\circ} \mathrm{C}$ to $77^{\circ} \mathrm{C}$ ? [Given specific heat of water is $4.2 \mathrm{~kJ} / \mathrm{kg}$ ]

1 $8 \min 20 \mathrm{~s}$
2 $6 \min 2 \mathrm{~s}$
3 $7 \mathrm{~min}$
4 $14 \mathrm{~min}$
BITSAT-2018
Thermal Properties of Matter

146660 Find the quantity of heat required to convert $40 \mathrm{gm}$ of ice at $-20^{\circ} \mathrm{C}$ into water at $20^{\circ} \mathrm{C}$. Given $\mathrm{L}_{\text {ice }}=0.336 \times 10^{6} \mathrm{~J} / \mathrm{kg}$.
Sp heat of ice $=2100 \mathrm{~J} / \mathrm{kg}-\mathrm{K}$ sp heat of water $=$ $4200 \mathrm{~J} / \mathrm{kg}-\mathrm{K}$

1 $12480 \mathrm{~J}$
2 $10420 \mathrm{~J}$
3 $16450 \mathrm{~J}$
4 $18480 \mathrm{~J}$
BITSAT-2005
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Thermal Properties of Matter

146657 A wire of $20 \Omega$ is immersed in ice. If $10 \mathrm{~A}$ current is passed through this wire for 1 minute, ice completely melts. The mass of the ice is nearly $\left(L_{\text {ice }}=79.7 \mathrm{calg}^{-1}\right)$

1 $3.5 \mathrm{~g}$
2 $359 \mathrm{~g}$
3 $540 \mathrm{~g}$
4 $3.5 \mathrm{~kg}$
AP EAMCET (23.04.2018) Shift-2
Thermal Properties of Matter

146658 Match the following List-I with List-II
| |List-I | | List-II |
| :--- | :--- | :--- | :--- | :--- |
| A | When ice melts into water | I | Volume increase |
| B | When water changes into steam | II | Volume decrease |
| C | Melting point of ice | III | Increases with increase of pressure |
| D | Boiling point of water | IV | Decreases with increase in pressure |

1 A - I,B - II,C - III ,D -IV
2 A - II,B - I ,C - IV ,D -III
3 A - III,B - II ,C - IV,D - I
4 A - II,B - I ,C - III ,D -IV
AP EAMCET (22.04.2018) Shift-II
Thermal Properties of Matter

146659 Water of volume 2 litre in a container is heated with a coil of $1 \mathrm{~kW}$ at $27^{\circ} \mathrm{C}$. The lid of the container is open and energy dissipates at rate of $160 \mathrm{~J} / \mathrm{s}$. In how much time temperature will rise from $27^{\circ} \mathrm{C}$ to $77^{\circ} \mathrm{C}$ ? [Given specific heat of water is $4.2 \mathrm{~kJ} / \mathrm{kg}$ ]

1 $8 \min 20 \mathrm{~s}$
2 $6 \min 2 \mathrm{~s}$
3 $7 \mathrm{~min}$
4 $14 \mathrm{~min}$
BITSAT-2018
Thermal Properties of Matter

146660 Find the quantity of heat required to convert $40 \mathrm{gm}$ of ice at $-20^{\circ} \mathrm{C}$ into water at $20^{\circ} \mathrm{C}$. Given $\mathrm{L}_{\text {ice }}=0.336 \times 10^{6} \mathrm{~J} / \mathrm{kg}$.
Sp heat of ice $=2100 \mathrm{~J} / \mathrm{kg}-\mathrm{K}$ sp heat of water $=$ $4200 \mathrm{~J} / \mathrm{kg}-\mathrm{K}$

1 $12480 \mathrm{~J}$
2 $10420 \mathrm{~J}$
3 $16450 \mathrm{~J}$
4 $18480 \mathrm{~J}$
BITSAT-2005
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NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
Thermal Properties of Matter

146657 A wire of $20 \Omega$ is immersed in ice. If $10 \mathrm{~A}$ current is passed through this wire for 1 minute, ice completely melts. The mass of the ice is nearly $\left(L_{\text {ice }}=79.7 \mathrm{calg}^{-1}\right)$

1 $3.5 \mathrm{~g}$
2 $359 \mathrm{~g}$
3 $540 \mathrm{~g}$
4 $3.5 \mathrm{~kg}$
AP EAMCET (23.04.2018) Shift-2
Thermal Properties of Matter

146658 Match the following List-I with List-II
| |List-I | | List-II |
| :--- | :--- | :--- | :--- | :--- |
| A | When ice melts into water | I | Volume increase |
| B | When water changes into steam | II | Volume decrease |
| C | Melting point of ice | III | Increases with increase of pressure |
| D | Boiling point of water | IV | Decreases with increase in pressure |

1 A - I,B - II,C - III ,D -IV
2 A - II,B - I ,C - IV ,D -III
3 A - III,B - II ,C - IV,D - I
4 A - II,B - I ,C - III ,D -IV
AP EAMCET (22.04.2018) Shift-II
Thermal Properties of Matter

146659 Water of volume 2 litre in a container is heated with a coil of $1 \mathrm{~kW}$ at $27^{\circ} \mathrm{C}$. The lid of the container is open and energy dissipates at rate of $160 \mathrm{~J} / \mathrm{s}$. In how much time temperature will rise from $27^{\circ} \mathrm{C}$ to $77^{\circ} \mathrm{C}$ ? [Given specific heat of water is $4.2 \mathrm{~kJ} / \mathrm{kg}$ ]

1 $8 \min 20 \mathrm{~s}$
2 $6 \min 2 \mathrm{~s}$
3 $7 \mathrm{~min}$
4 $14 \mathrm{~min}$
BITSAT-2018
Thermal Properties of Matter

146660 Find the quantity of heat required to convert $40 \mathrm{gm}$ of ice at $-20^{\circ} \mathrm{C}$ into water at $20^{\circ} \mathrm{C}$. Given $\mathrm{L}_{\text {ice }}=0.336 \times 10^{6} \mathrm{~J} / \mathrm{kg}$.
Sp heat of ice $=2100 \mathrm{~J} / \mathrm{kg}-\mathrm{K}$ sp heat of water $=$ $4200 \mathrm{~J} / \mathrm{kg}-\mathrm{K}$

1 $12480 \mathrm{~J}$
2 $10420 \mathrm{~J}$
3 $16450 \mathrm{~J}$
4 $18480 \mathrm{~J}$
BITSAT-2005