THE MECHANICAL EQUIVALENT OF HEAT

Heat Energy ||Mechanical Equivalent OF Heat||Specific Heat||Thermal Capacity || Latent Heat

Heat Energy ||Mechanical Equivalent OF Heat||Specific Heat||Thermal Capacity || Latent Heat

Match the physical quantities with dimehnsions expressed in disarray. (i) Angular momentum (i) [M^(-1) L^3T^(-2)] (ii) Latent heat (ii) [M^1 L^3 T^(-3)A^(-2)] (iii) Specific heat (iii) [M^0 L^2 T^(-2)] (iv) Joule's mechanical equivalent of heat (iv) [M^0L^2 T^(-2)K^(-1)] (v) Resistivity (v) [M^0 L^) T^0] (vi) Gravitational Constant (vi) [M^1 L^2 T^(-1)]

The SI unit of mechanical equivalent of heat is

The S.I value of Mechanical equivalent of heat is:

Latent heat OF fusion||Latent heat OF vaporisation||Mechanical equivalent OF heat examples

Find the value of Joule's mechanical equivalent of heat from the following data: density of hydrogen at NTP is 0.09kgm^(-3) , its specific heat capacity at constant pressure =3400 cal kg^(-1)K^(-1) and ratio of specific heat capacities (gamma)=1.4 .

Find out the amount of work done to convert 100 g ice at 0^(@)C to water at 100^(@)C . (Latent heat of fusion of ice = 80 cal cdot g^(-1) , mechanical equivalent of heat = 4.2 J cdot cal^(-1)) .