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# How do you measure molar heat capacity?

Updated: 8/11/2023

Wiki User

10y ago

Specific heat is the heat capacity divided by the heat capacity of water, which makes it dimensionless. To obtain molar heat capacity from specific heat for a material of interest, simply multiply the specific heat by the heat capacity of water per gram [1 cal/(g*C)]and multiply by the molecular weight of the substance of interest.

For example, to obtain the molar heat capacity of iron

Specific heat of iron = 0.15 (note there are no units)

Molar heat capacity of iron = 0.15*1 cal/(g*C)*55.85 g /gmole

= 8.378 cal/(gmole*C)

Wiki User

11y ago

Wiki User

14y ago

molar heat capacity is the product of specific heat capacity and molecular weight

molar heat capacity=specific heat capacity*molecular weight

Wiki User

10y ago

heat supplied to a mole of a consequet rise in temprature.

Cp= J / deg C- mol

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Related questions

### What is molar heat?

Molar heat refers to the amount of heat required to raise the temperature of one mole of a substance by one degree Celsius. It is a measure of the heat capacity of a substance on a per mole basis. Molar heat is often used in thermochemistry to calculate heat changes in chemical reactions.

### Molar heat capacity of water?

The molar heat capacity of water is 75.3 J/mol K at constant pressure. This means that it takes 75.3 joules of energy to raise the temperature of one mole of water by 1 Kelvin.

### Is molar heat capacity intensive or extensive?

Molar heat capacity is an extensive property because it depends on the amount of substance being considered.

### What is the specific heat capacity for selenium?

The molar heat capacity of selenium is 25,363 J/mol.K.

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### How can you measure the molar heat of solution of solids?

The molar heat of solution of a solid can be measured by dissolving a known mass of the solid in a specific amount of solvent and measuring the temperature change that occurs. By using the formula q = mcΔT (where q is heat energy, m is mass, c is specific heat capacity, and ΔT is temperature change), the molar heat of solution can be calculated.

### What is the difference in specific heat between hydrogen and oxygen molecules?

The molar heat capacity of hydrogen (H2) is 28,835 J/mol/K.The molar heat capacity of oxygen (O2) is 29,378 J/mol/K.

### What is another way to say heat capacity?

Another way to say heat capacity is thermal capacity.

### What is the heat capacity of 165g of liquid water?

The specific heat capacity of liquid water is 4.184 J/g°C. To find the heat capacity, you multiply the mass of the water (165g) by the specific heat capacity. So, the heat capacity of 165g of liquid water is 688.56 J/°C.

### The molar heat capacity of gaseous hexane at 25 degrees Celsius is 142.6 J What is the specific heat?

Specific heat capacity is an intrinsic property of a substance and is independent of the amount of the substance. Therefore, the specific heat capacity of gaseous hexane would be the same as its molar heat capacity, which is 142.6 J/mol°C.

### What is approximately the molar heat capacity of most metals?

The molar heat capacity of most metals is approximately 25 J/mol·K. This means that it takes about 25 Joules of energy to raise the temperature of 1 mole of a metal by 1 Kelvin.

### What quantity must the heat capacity of an object be divided to obtain the specific heat of that material?

Heat capacity is in the measurement of (kilo)Joules per mol degree Kelvin (J/mol K) Specific heat capacity is in joules/gram degree Kelvin (J/ gram K) Converting between the two is rather simple. To convert to specific heat capacity, divide the molar heat capacity by the molar mass of the molecule in question. eg. ( J/ mol K) / (grams/mol ) = J/ gram K, because mols will cancel.