Advertisements
Advertisements
प्रश्न
The specific heat capacity of a body depends on _____________ .
विकल्प
the heat given
the temperature raised
the mass of the body
the material of the body
Advertisements
उत्तर
the material of the body
Heat capacity of a body is due to their material properties. Due to different molecular structures, different bodies have a different capacity to absorb heat. Therefore, specific heat of a body depends on the material of the body.
APPEARS IN
संबंधित प्रश्न
Water property of water makes it an effective coolant?
Give one example where high specific heat capacity of water is used as heat reservoir ?
A mass m1 of a substance of specific heat capacity c1 at temperature t1 is mixed with a mass m2 of other substance of specific heat capacity c2 at a lower temperature t2. Deduce the expression for the temperature t of the mixture. State the assumption made, if any.
It is generally cold after a hail-storm then during and before the hail storm. Give reason.
Name two green house gases ?
How will rise in sea level affect population in coastal countries?
How will climate changes affect the various animal species?
(b) 2000 J of heat energy is required to raise the temperature of 4 kg of a
metal by 3°c. Which expression gives the specific heat capacity of the metal?
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.
State, with reason, which of the two, boiling water or steam both at 100°C will produce more severe burns.
Fill in the following blank using suitable word:
SI unit of heat is .........
A liquid X has specific heat capacity higher than the liquid Y. Which liquid is useful as coolant in car radiators.
State the condition for the flow of heat energy from one body to another.
Does the specific heat capacity of a substance depend upon its mass and rise in temperature only?
Explain, why water is considered as best liquid for quenching thirst?
Explain, why does a wise farmer water his fields, if forecast is forst?
Is it possible to condense the water formed, back to ice by adding ice at 0°C. Explain with reason.
Give two reasons as to why copper is preferred over other metals for making calorimeters.
The temperature of a lead piece of mass 400 g rises from 20°C to 50°C when 1560 J of heat is supplied to it. Calculate Specific heat capacity of lead.
How much heat energy is necessary to raise the temperature of 5 kg of water from 20°C to 100°C?
Decide the unit for specific heat capacity.
If 'Cp' and 'Cv' are molar specific heats of an ideal gas at constant pressure and volume respectively. If 'λ' is the ratio of two specific heats and 'R' is universal gas constant then 'Cp' is equal to ______.
50 g of copper is heated to increase its temperature by 10° C. If the same quantity of heat is given to 5 g water, the rise in its temperature is [Specific heat of copper = 420 joule-kg-1 °C-1 , specific heat of water = 4200 joule-kg-I °C-1]
A monoatomic gas of pressure 'P' having volume 'V' expands isothermally to a volume '2V' and then adiabatically to a volume '16V'. The final pressure of the gas is ______.
(ratio of specific heats = `5/3`)
Heat is applied to a rigid diatomic gas at constant pressure. The ratio ΔQ : ΔU : ΔW is ______.
The molar specific heat of an ideal gas at constant pressure and constant volume is 'Cp' and 'Cv' respectively. If 'R' is the universal gas constant and the ratio 'Cp' to 'Cv' is 'γ' then CV = ______.
The diagram below shows a cooling curve for 200 g of water. The heat is extracted at the rate of 100 Js-1. Answer the questions that follow:
- Calculate specific heat capacity of water.
- Heat released in the region BC.
Two cylinders of equal height and radius are made of copper and aluminum. Which of them conducts heat faster?
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.
