Which of the following has low specific heat?
Specific heat is how much heat energy is needed raise the temperature of a substance. Water has a very high specific heat. That means it needs to absorb a lot of energy before its temperature changes. Sand and asphalt, on the other hand, have lower specific heats.
What is the importance of specific heat capacity of water?
Water has a high specific heat capacity which we’ll refer to as simply “heat capacity”, meaning it takes more energy to increase the temperature of water compared to other substances. This is why water is valuable to industries and in your car’s radiator as a coolant.
How does hydrogen bonding contribute to water’s high specific heat?
Water’s high heat capacity is a property caused by hydrogen bonding among water molecules. When heat is absorbed, hydrogen bonds are broken and water molecules can move freely. Specific heat is defined as the amount of heat one gram of a substance must absorb or lose to change its temperature by one degree Celsius.
What is the specific heat capacity of ice?
Differences in Water and Ice The specific heat capacity of water at -10 degrees Celsius (ice) is 2.05 joules/gram * degree Kelvin.
How do you calculate temperature change in specific heat capacity?
Example
- change in temperature = (100 – 25) = 75.0°C.
- change in thermal energy = mass × specific heat capacity × change in temperature.
- = 0
How do you rearrange the specific heat capacity equation?
how do you rearrange the spersific heat capacity equation?
- energy (J) = mass (kg) × specific heat capacity (J/kg/ºC) × temperature change (ºC)
- mass (kg) = energy (J) divided by (specific heat capacity x temperature change)
- Specific heat capacity = Energy (J) divided by (mass (kg) x temperature change)
What is the SI unit for specific heat capacity?
Specific heat capacity is defined as the amount of heat required to raise the temperature of 1 kilogram of a substance by 1 kelvin (SI unit of specific heat capacity J kg−1 K−1).
What is the SI of capacity?
Informally, it is the amount of energy that must be added, in the form of heat, to one unit of mass of the substance in order to cause an increase of one unit in temperature. The SI unit of specific heat capacity is joule per kelvin per kilogram, J⋅kg−1⋅K−1.
What is the SI unit of specific resistance?
ohm-meter
What is the SI unit of molar specific heat?
The molar heat capacity is the amount of energy required to raise the temperature of one mole of a substance by one degree; its units in the SI system are J/mol · K.
What is difference between specific heat and molar specific heat?
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. Specific heat capacity is a measure of the amount of heat necessary to raise the temperature of one gram of a pure substance by one degree K.
What is Einstein theory of specific heat?
A theory of the specific heat of solids proposed by Albert Einstein in 1906. In this theory, Einstein attributed the specific heat of solids to the vibrations of the solid and made the simplifying assumption that all the vibrations have the same frequency.
What is the formula of molar specific heat capacity?
So, to raise the temperature of µ moles of solid through ∆T, you would need an amount of heat equal to ∆Q=µ C ∆T. The molar specific heat capacity of a substance is nothing but the amount of heat you need to provide to raise the temperature of one gram molecule of the substance through one degree centigrade.
What is the relationship between specific heat and atomic mass?
According to the Dulong and Petit Law, atoms of all elements have the same heat capacity so their specific heat can be inversely related to their respective atomic weights. Thus, the product of atomic mass and specific heat in the solid state, known as atomic heat of the element, has a value approximately equal to 6.4.
What is true about specific heat capacity?
Specific heat capacities help describe how easily a material’s temperature changes when it loses energy. Materials with high specific heat capacities need a lot of energy to change their temperature.