Due to the presence of salt in ice the melting point.
Increase from 0 to -22°C
Decreases from 0 to -22°C
Increase from 0 to 22°C
Decreases from 22 to 0°C
A cylindrical vessel which is used to measure the amount of heat gained or lost by a body when it is mixed with other body is called
Manometer
Hydrometer
Calorimeter
Barometer
What could be the final temperature of a mixture made up of a substance having mass 10 kg and specific heat capacity 1800 J/kg/k and temperature 27°C and a substance having mass 5kg and specific heat capacity 2400 J/kg/k at temperature 21°C?
297.6 K
300 K
297 K
290 K
One calorie of heat is the heat energy required to raise the temperature of 1 g of water from
13.5 °C to 14.5 °C
14.5 °C to 15.5 °C
15.4 °C to 15.5 ° C
14.4°C to 15.5 ° C
What is the unit of heat capacity?
J / k / mol
J / mol
J k
J / k
Heat capacity per unit mass of a body is called
Specific heat capacity
Latent heat capacity
Special heat capacity
Thermal capacity
Calculate the heat capacity of a copper vessel of mass 150 g if the specific heat capacity of copper is 410 J/kg/k. How much heat energy will be required to increase its temperature from 25°C to 35°C?
615 J/k , 61.5 J
61.5 J/k , 615 J
615 Cal/°C , 61.5 Cal
61.5 Cal/°C , 615 Cal
What is the SI unit of specific latent heat?
Cal g-1
Cal g-1 k-1
J kg-1
J kg-1 k-1
The change from soild to vapour directly at a constant temperature is called:
Condensation
Sublimation
Regelation
Vaporisation
The specific heat capacity of aluminium is 1.2 cal/g/°C.Its value in J/kg/K will be:
5.04 x 103
1.2 x 103
4.2 x 103
3.5 x 103
