Advertisements
Advertisements
प्रश्न
What is the principle of Calorimetry?
State and explain the principle of Calorimetry.
State the principle of calorimetry.
उत्तर
When a hot body is mixed (or is kept in contact) with a cold body, heat energy passes from the hot body to the cold body, till both the bodies attain the same temperature. If no heat energy is lost to the surroundings (i.e., if the system is perfectly insulated), then this is called the principle of method of mixtures (or the principle of calorimetry).
APPEARS IN
संबंधित प्रश्न
1300 J of heat energy is supplied to raise the temperature of 6.5 kg of lead from 20° C to 40°C. Calculate the specific heat capacity of lead.
The temperature of 600 g of cold water rises by 15° C when 300 g of hot water at 50° C is added to it. What was the initial temperature of the cold water?
A bucket contains 10 liters of water at 80°C. Cold water at 25°C is run from a tap into the bucket of hot water for 20 seconds and the temp. Of the water in the bucket falls to 50°C.
(a) Calculate the rate at which cold water came out of the tap.
(b) State an assumption made in the above calculation.
40 g of ice at -16°C is dropped into water at 0°C, when 4 g of water freezes into ice. If specific heat capacity of ice is 2100 J/kg°C, what will be the latent heat of fusion of ice?
Fill in the following blank using suitable word:
Two bodies in contact are said to be in thermal equilibrium, if they have same ...........
State two impacts of global warming on the life on earth.
A mass of 40g of brass of specific heat capacity 0.85 Jg-1 K-1 is heated in an oven and then quickly transferred into 240g of water at 30°C in a calorimeter of mass 60g and specific heat capacity 0.4 Jg-1 K-1. If the final temperature is 50°C. What was the temperature of the oven?
Conduction is the way of heat transfer which takes place in a ______.
