Calorimeter

Q. 1 Calorie is equal to joules
.

1. 4.184
2. 2.326
3. 9.182

Q. The amount of heat required at 1 atmospheric pressure to raise the temperature of 1 gram of water by 1° Celsius is called calories.

1. one
2. two
3. three

Q. A _______ is used to measure the heat content of an object.

1. clinical thermometer
2. calorimeter
3. microscope
4. digital thermometer

Q. Name the S.I. unit of heat.

1. Joule
2. Kelvin
3. Degree centigrade
   
4. All of the above
   

Q.

The Heat Capacity Of Material Depends Upon______

Q. Insulation between vessels in a calorimeter is essential for accurate reading.

1. True
2. False

Q.

A calorimeter contains $0.2kg$ of water at ${30}^{\circ }C$. $0.1kg$ of water at ${60}^{\circ }C$ is added to it, the mixture is well stirred and the resulting temperature is found to be ${35}^{\circ }C$. The thermal capacity of the calorimeter is ( specific heat of water $=4200Jk{g}^{-1}{K}^{-1}$

1. 1260 J/K
2. 6300 J/K
3. 4200 J/K
4. None of these

Q.

A laboratory thermometer A is kept 7 cm away on the side of the flame while a similar thermometer B is kept 7 cm above the flame of a candle as shown in Figure.

The thermometer B will show a greater rise in temperature.

1. True

2. False

Q.

Is a unit called calorie also used to measure heat? And what is it?

Q. Two bodies at different temperatures are mixed in a calorimeter. Which of the following quantities remains conserved?

(a) Sum of the temperatures of the two bodies
(b) Total heat of the two bodies
(c) Total internal energy of the two bodies
(d) Internal energy of each body

Q.

$50g$ of copper is heated to increase its temperature by $10{}^{\circ }C$. If the same quantity of heat is given to $10g$ of water, then the rise in its temperature is (specific heat of copper $=420J/kg{/}^{\circ }C$)

1. $5^{\circ }C$

2. $6^{\circ }C$

3. $7^{\circ }C$

4. $8^{\circ }C$

Q.

___________ is used to measure the amount of heat gained or lost by a substance.

1. Barometer

2. Odometer

3. Calorimeter

4. Speedometer

Q.

While doing an experiment to measure the temperature at which water boils, Ram keeps the laboratory thermometer completely immersed in water without touching the surface or bottom of the beaker. Shyam on the other hand does the same experiment with the thermometer touching the bottom of the beaker. Who is more likely to get an accurate reading?

1. None of them will be able to get an accurate result

2. Ram

3. Shyam

4. Ram and Shyam will get the same result

Q.

2000 cal of heat is supplied to 200 g of water. Find the rise in temperature. (Specific heat of water = 1 cal /g °c)

Q. joule is the unit of

1. heat
2. temperature
3. thermometry
4. work

Q. A calorimeter contains $0.2kg$ of water at ${30}^{\circ }C$. $0.1kg$ of water at ${60}^{\circ }C$ is added to it, the mixture is well stirred and the resulting temperature is found to be ${35}^{\circ }C$. The thermal capacity of the calorimeter is ( specific heat of water $=4200Jk{g}^{-1}{K}^{-1}$

1. $6300J{K}^{-1}$
2. $1260J{K}^{-1}$
3. $4200J{K}^{-1}$
4. $6000J{K}^{-1}$

Q. According to conservation of energy, heat gained by one body is equal to heat lost by another body.

1. True
2. False

Q.

2000 cal of heat is supplied to 200 g of water. Find the rise in temperature. (Specific heat of water = 1 cal /g °c)

Q.

Two identical mercury thermometers are placed in a cold room. The bulb of one thermometer is coated with lamp black and that of the other is painted white. Now they are exposed to sunlight simultaneously. In which thermometer, the change in temperature will be fast? class 11

Q. 1 Calorie is equal to joules
.

1. 4.184
2. 2.326
3. 9.182