Home
Class 11
PHYSICS
A lead piece of mass 25 g gives out 1200...

A lead piece of mass `25 g` gives out `1200` calories of heat when it is cooled from `90^@ C` to `10^@ C`. What is its
(i) specific heat
(ii) thermal capacity
(iii) water equivalent.

Text Solution

AI Generated Solution

To solve the problem step by step, we will find the specific heat, thermal capacity, and water equivalent of the lead piece. ### Given Data: - Mass of lead piece, \( m = 25 \, \text{g} = 25 \times 10^{-3} \, \text{kg} \) - Heat given out, \( Q = 1200 \, \text{cal} \) - Initial temperature, \( T_1 = 90^\circ C \) - Final temperature, \( T_2 = 10^\circ C \) ...
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

When water is heated from 0^(@)C to 10^(@)C , its volume

A metal block absorbs 4500 cal of heat when heated from 30^@C to 80^@C . Its thermal capacity is

A certain substance has a mass of 50/gmol. When 300 J of heat is added to 25 g of sample of this material, its tempertuare rises from 25 to 45^(@) C. Calcualte (i) thermal capacity.. (ii) Specific heat and (iii) molar heat capacity of the sample.

A ball of mass 20 g and specific heat capacity 0.1 cal//g –.^(@)C . The water equivalent of ball is

A metal block absorbs 450 cal of heat when heated from 30^(@)C to 80^(0)C its thermal capacity is in cal/^(0)C

If 1050 kJ of heat is required to rise the temperature of 18 kg of substance from 25^(@)C" to "35^(@)C , find the thermal capacity and water equivalent of the substance.

A mass of 50g of water in a closed vessel, with surroundings at a constant temperature takes 2 minutes to cool from 30^(@)C to 25^(@)C . A mass of 100g of another liquid in an identical vessel with identical surroundings takes the same time to cool from 30^(@) C to 25^(@)C . The specific heat of the liquid is: (The water equivalent of the vessel is 30g.)

Find the increase in mass when 1 kg of water is heated from 0^@C to 100^@C . Specific heat capacity of water = 4200 J kg^(-1) K^(-1) .

In similar calorimeters, equal volume of water and alcohol, when poured take 100 s and 74 s respectivel to cool from 50^(@) C to 40^(@) C. If the thermal capacity of each calorimeter is numerically equal to volume of either liquid, then calculatethe specific heat capacity of alcohol. (Given, the relative density of alcohol as 0.8 and specific heat capacity of water as 1 cal/g/^(@)C)