Advertisements
Advertisements
Question
Write the name.
The amount of heat absorbed at constant temperature by unit mass of a liquid to convert into gaseous phase.
Advertisements
Solution
The amount of heat absorbed at constant temperature by unit mass of a liquid to convert into gaseous phase- Specific latent heat of vaporisation
APPEARS IN
RELATED QUESTIONS
Calculate the mass of ice needed to cool 150 g of water contained in a calorimeter of mass 50 g at 32 °C such that the final temperature is 5 °C. Specific heat capacity of calorimeter = 0.4 J g-1 °C-1, Specific heat capacity of water = 4.2 J g-1°C-1, latent heat capacity of ice = 330 J g-1.
What do you understand by the following statements:
The heat capacity of the body is 60JK-1.
Explain the term boiling point ?
Give three reasons for the increase of green house gases.
Give one example where high specific heat capacity of water is used as cooling.
650 J of heat is required to raise the temp. of 0.25 kg of lead from 15°C to 35°C. Calculate the Sp. heat capacity of lead.
The farmers fill their fields with water in winter. Give reason.
Explain, why water is considered as best liquid for quenching thirst?
Explain, why does a wise farmer water his fields, if forecast is forst?
Write an expression for the heat energy liberated by a hot body.
Water falls from a height of 50 m. Calculate the rise in the temperature of water when it strikes the bottom.
(g = 10 ms-2; Specific heat capacity of water = 4200 J / kg°C)
The molar specific heats of an ideal gas at constant pressure and constant volume are denoted by Cp and Cv respectively. If `gamma = "C"_"p"/"C"_"v"` and R is the universal gas constant, then Cp is equal to ______.
Heat is applied to a rigid diatomic gas at constant pressure. The ratio ΔQ : ΔU : ΔW is ______.
On supplying 100 µC of charge to a conductor, its potential rises by 5 V then capacity of the conductor is ______.
J/Kg °C is the unit of specific heat capacity.
Which of the following substances (A, B and C) has the highest specific heat?

We would like to make a vessel whose volume does not change with temperature (take a hint from the problem above). We can use brass and iron `(β_(vbrass) = (6 xx 10^(–5))/K and β_(viron) = (3.55 xx 10^(–5))/K)` to create a volume of 100 cc. How do you think you can achieve this.
The difference between the two molar specific heats of gas is 9000 J/kg K. If the ratio of the two specific heats is 1.5, calculate the two molar specific heats.
