WHAT IS Spesific heat and Latent Heat?

Question

Please provide rules if needed

Answer 1

Specific heat is the heat needed by 1 gram of a substance to be raised by a temperature of 1 degree Celsius. Water has the highest specific heat of all substances and is taken as 1 Calorie/gm/C

Q = m.s.dt where Q is the quantity of heat, m, the mass, s the specific heat, and dt the difference in temperature.

Thus to raise the temperature of 100 g of water by 10 degree Celsius, we will need 1000 Calories since s is 1 for water.

Latent heat is heat which is not sensed, and is that heat which is either emitted or absorbed when a change of state takes place. When ice melts and becomes water it absorbs about 82 Calories for each gram and the temperature remains constant at 0 C. Similarly, when liquid water becomes steam at 100 C, about 550 Calories are needed.

When steam condenses into water or when the water freezes into ice, the heat is emitted and needs to be removed out of the system before the temperature drops further.

Latent heat is linked to the molecular bonds and the energies associated with the bonds. The stronger the bonds, the more energy is needed to break the bonds.

Answer 2

The specific heat of a substance is the amount of heat needed to supply to raise the temp of 1 gram of the substance by 1 degree celcius.
For example the specific heat of water is 1 calorie per gram per C means that 1 calorie heat can increase temp of 1 gm of water by 1 degree celcius.

And latent heat is the heat which is only required to change the state of a substance from solid to liq or from liq to gas and vice versa.
For example latent heat of ice is 80 cal per gram means that to convert 1 gm of ice at 0 is converted to 1gm water at 0 by applying 80 cal to it. Latent heat does not change temp but changes state of the substance

Answer 3

Consider some piece of ice at zero degree centigrade.

Heat the piece of ice.

The temperature remains the same as zero degree centigrade till all ice is converted to water at zero degree centigrade.

The amount of heat needed to melt one kg of ice to water (no rise of temperature) is latent heat of ice.

After converting the ice into water if we still continue to heat the ice (now water), then the temperature rises from zero degree.

The amount of heat needed to raise the temperature of one kg of water to one centigrade is the specific heat of water.

The same reasoning can be applied to any substance.

Answer 4

i dunno about specific heat but i can surely tell you latent.
latent in latin means hidden. so this kind of heat cannot be seen or felt by you.
the easiest example is the boiling point and melting point of water. the temperature remains same until all the water if evaporated or frozen and this is precisely what latent heat is.

Answer 5

specific heat- the amount of heat required to raise the temp. of 1Kg of a substance through 1K.
latent heat- amount of heat energy required or released to change the state of a substance of unit mass at a constant temp.