How do you calculate the specific heat of a compound?
Table of Contents
- 1 How do you calculate the specific heat of a compound?
- 2 What is meant by specific heat capacity How will you prove experimentally that different substances have different specific heat capabilities?
- 3 How can you measure specific heat capacity experimentally?
- 4 What is meant by specific heat capacity which principle is used to measure the specific heat capacity of a substance?
- 5 Why is specific heat capacity different for substances?
How do you calculate the specific heat of a compound?
The specific heat capacity is the heat or energy required to change one unit mass of a substance of a constant volume by 1 °C. The formula is Cv = Q / (ΔT ⨉ m) .
How do you determine heat capacity?
Heat capacity is the ratio of the amount of heat energy transferred to an object to the resulting increase in its temperature. Molar heat capacity is a measure of the amount of heat necessary to raise the temperature of one mole of a pure substance by one degree K.
What is meant by specific heat capacity How will you prove experimentally that different substances have different specific heat capabilities?
Experiment to prove different substances have different specific heat capacities: The ball which absorbs more heat from the water will give more heat to wax. More wax will thus melt and the ball will go deeper in the wax. It will be observed that the iron ball goes deepest into the wax.
Can specific heat capacity be used to identify substances?
Specific heat is an intensive property (like density, color, etc.) that does not depend on the amount of a substance present. This allows substances to be identified using their specific heat.
How can you measure specific heat capacity experimentally?
Steps to determine the specific heat capacity.
- Place a beaker on a balance and press zero.
- Now add the oil to the beaker and record the mass of the oil.
- Read the starting temperature of the oil.
- Connect a joulemeter to the immersion heater.
- Time for thirty minutes.
Why do we need to know specific heat capacity?
Explanation: Specific heat capacity is a measure of the amount of heat energy required to change the temperature of 1 kg of a material by 1 K. Hence it is important as it will give an indication of how much energy will be required to heat or cool an object of a given mass by a given amount.
What is meant by specific heat capacity which principle is used to measure the specific heat capacity of a substance?
The principle of heat exchange is used to measure the specific heat capacity of a substance .
Which principle is used to measure specific heat capacity of Asubstance?
Principle of heat exchange is used in the calorimetry method to determine the specific heat capacity of a substance.
Why is specific heat capacity different for substances?
The specific heats and molar heat capacities of different substances can be quite different; they reflect both molecular structure and intermolecular interactions (for solids and liquids, but not gases).
Why would determining the heat capacity of an unknown be useful information?
Specific heat capacity can be used to identify an unknown substance. The specific heat capacity is a physical property of the material a substance is composed of and can be used to help identify the substance the way density can help identify an incompressible substance like a solid or liquid.