Thermal properties of matter

To what temperature can Mercury be used to calculate heat?

356 degrees Celsius

What has the highest specific heat capacity

Water

How many joules are present in 1 calorie

4.186 joules

What is the coefficient of specific heat capacity for water

1 calorie/gm

What is the value of the coefficient of specific heat capacity for ice

½ calorie/gm

What is the coefficient of specific heat capacity for steam

0 calorie/gm

del

What is the value of latent heat for ice → water (or) water → ice (in cal/g)

80 cal

What is the value of latent heat for water → steam (or) steam → water (in cal/g)

540 cal

What is the formula for thermal resistance, and also explain its constituent parts

R = L/A*K (Where L → length of conductor ; A → cross sectional area ; k → thermal conductivity→ measure of how well a substance conducts heat)

What is the definition and formula for heat current; Why do we use it

The amount of heat passed per unit length. We use this to find out the rate of heat transfer in a body that is experiencing heat energy

What is the formula for resistance in parallel

What is Emissive power and what is its formula

It is the amount of heat energy that is being emitted from the body per unit area per unit second

What is the formula for emissive power if a body is at a temperature T
1. Tell its relation with the formula

2. What is the name of the constant that is being used

1. E = σ T⁴

2. E ∝ T⁴

3. Stephens constant

What is the value of Wien’s Displacement Constant

2.9×10^-3 metre Kelvin

What does Wein’s law tell us?

Tells you the wavelength at which the blackbody emits maximum energy per unit wavelength — i.e., the peak of its radiation curve.

What is the formula for Newton’s cooling

Here,

1. T → temperature

2. t → time

3. To → Surrounding temperature

What is the solar constant

The amount of energy released by the sun, which is then absorbed at a distance r by a body, per unit area of the absorbed body that is a planet