What is the heat capacity?
Thermal energy input (Q) required to increase the temperature (t) of the substance one degree Celsius (1 ° C) is defined as its thermal capacity (C). Since it is a "extensive" property, the value C varies not only from substance to substance, but also for different amounts of the same substance. To adapt, the heat capacities may be given in terms including quantity or quantity. If the reference to the heat capacity to the MOL material is called molar thermal capacity; If it is a warm capacity per gram of material, it is a specific thermal capacity - or a simpler "specific heat". These conditions have the greatest value in reference to pure substances.
engineering problems often provide C as "given" while Q is "unknown". The equation is q = laugh, where m is weight in grams and Δt is the rise in temperature in degrees Celsius. Thermal capacity can be a key parameter for a number of reasons. To illustrate, larger -capacity materials are sometimes used as a coolerE because they absorb heat like a sponge. Water is remarkable in this respect because it shows the largest value of C known among common substances, so it is extremely suitable for use as a radiator coolant.
In meteorology, thermal capacity plays a role in several phenomena, including why the wind along the coast blows in a different direction day than at night. The soil has a lower thermal capacity than water, so the soil warms faster than the sea during the day, while at night it cools faster. The air is cooler over the ocean, but at night through the ground. Warm air is light and rises, allowing to replace cooler and heavier breeze. During the day, these breeze throws out of the soil to the sea, while during the night the opposite is true, which affects the coastal birds and pilots glider.
Thermal capacity is not intended to consider the affection of the atation phase, as in melting ice to produce water. This phenomenon is dedicated to independent consideration - thatThis feature is called "Heat of Fusion". Similarly, the transformation of liquid into gas is called "heat evaporation". ICE has an exceptionally high merger temperature, lending the stability to the country's weather systems and making home cooling practical. Interestingly, gas ammonia, once used in industrial and domestic cooling systems, has an even higher thermal capacity and heat.