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Heat Capacity

The apparatus...

Question

The apparatus used to measure heat changes during chemical reactions is called

A

polarimeter

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B

thermometer

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C

calorimeter

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D

none of these

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Solution

The correct option is C
calorimeter

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Similar questions

Q. Name the apparatus used to measure the heat absorbed or released by a reaction.

Heat change in a chemical reaction, at constant temperature and pressure is called:

Q. Chemical reactions are invariably associated with the transfer of energy either in the form of heat or light. In the laboratory,
heat changes in physical and chemical processes are measured with an instrument called Calorimeter. Heat change
in the process is calculated as

q = m s Δ T

s = s p e c i f i c h e a t

= c Δ T

c = h e a t c a p a c i t y

Heat of reaction at constant volume is measured using bomb Calorimeter.

q_{V} = Δ U = i n t e r n a l e n e r g y c h a n g e

Heat of reaction at constant pressure is measured using bomb Calorimeter.

q_{P} = Δ H

q_{P} = q_{V} + P Δ V

Δ H = Δ U + Δ n R T

The enthalpy of fusion of ice is

6.02 k J m o l^{- 1}

. The heat capacity of water is

4.18 J g^{- 1} C^{- 1}

What is the smallest number of ice cubes at

0^{\circ} C

, each containing one mole of water, that is needed to cool

500 g

of liquid water from

20^{\circ} C

0^{\circ} C

.

Chemical reaction is invariably associated with the transfer of energy either in the form of heat or light. In the laboratory, heat changes in physical and chemical processes are measured with an instrument called Calorimeter. Heat change in the process is calculated as :

q = m s Δ T

s = s p e c i f i c h e a t

= c Δ T

c = h e a t c a p a c i t y

Heat of reaction at constant volume is measured using bomb Calorimeter.

q_{V} = Δ U =

internal energy change
Heat of reaction at constant pressure is measured using bomb Calorimeter.

q_{P} = Δ H

q_{P} = q_{V} + P Δ V

Δ H = Δ U + Δ n R T

The heat capacity of a bomb calorimeter is

500 J K^{- 1}

0.1 g

of Methane was burnt in this calorimeter, the temperature rose by

2^{\circ} C

Δ U

per mole will be :

Q. Apparatus used to measure weight is :

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