Physics 2 Marks Questions

It is necessary because heat from environment may absorbed by the calorimeter or heat of the object may be released by the calorimeter in environment so as to measure precise quantity of heat.

As the specific heat of water is higher than soil or land thus lesser heat is absorbed or released than stones or land. Thus atmospheric temperature changes in very less amount.

1. Specific heat capacity of melting ice = 4.210 (as ice starts melting above 0°c)
2. Specific heat capacity of boiling water = 4.219 (as water starts boiling at 100°c)