Specific Heat

Q.

What type of conductor is glass?

1. Good
   

2. Bad
   

3. Average

4. None of these
   

Q.

What is heat in chemistry?

Q.

___ is an example of a liquid which is a good conductor of heat.

Q.

Which of the following is a good insulator of heat?

1. Mercury

2. Copper

3. Iron

4. Trapped air

Q.

During the day, sea gets heated more quickly than the land.

1. True

2. False

Q.

Give a mathematical relation between heat capacity and specific heat capacity.

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

1. ${50}^{\circ }C$
2. ${100}^{\circ }C$
3. ${67}^{\circ }C$
4. None of these

Q. Glass is a bad conductor of heat and electricity.

1. True
2. False

Q. A 600 g piece of granite, heated to $560°C$ in a campfire, is dropped into 1 liter water at $25.0°C$. Calculate the final temperature of the granite. The specific heat capacity of water is $s_w=1cal/g°C$, and the specific heat of granite is $s_g=0.2cal/g°C$.

Q.

How does the density of water vary during the anomalous expansion of water?

1. Density decreases first then increases.

2. Density remains constant first and then increases.

3. Density increases first then remains constant.

4. Density increases first then decreases.

Q. A solid of mass 0.15 kg is heated from 10 to 90°c.If the sp. heat capacity of the solid is 390J/kg/°c, find the heat absorbed by the solid?

Q. Which of the following represents specific heat in the mathematical form.

1. $S=\frac{\Delta Q}{\Delta M\Delta T}$
2. $S=\frac{Q}{M\Delta C}$
3. $S=\frac{M\Delta T}{\Delta Q}$
4. $S=\frac{Q}{M\Delta T}$

Q. Boiling water at ${100}^{0}C$ and cold water at $t^{0}C$ are mixed in the ratio $1:3$ and the resultant maximum temperature was ${27}^0$C. Assuming no heat losses, the value of t is :

1. $4^{0}C$
2. ${9.33}^{0}C$
3. ${2.67}^{0}C$
4. ${6.67}^{0}C$

Q. Cities near the ocean will tend to have less change and less extreme temperatures than inland cities.

1. True
2. False

Q.

Hot water bottles are used for fomentation. This shows that water

1. has high specific heat capacity and hence can be used as a heat reservoir

2. has high conducting ability and hence can be used as a heat reservoir

3. has high heat gaining ability and hence can be used as a coolant

4. has high heat losing ability and hence can be used as a heat reservoir