Do bodies at `0^@c` radiate heat ?

How much heat is needed to take 5g of ice at 0^@C to water at 10^@C ?

A glass window pane 1 m by 1 m is 25 mm thick. If the show outside maintains the outer surface at 0^@ C and the heat of the room maintains the inner surface at 6^@ C ,Thermal conductivity of glass in S.I unit is 0.2, how much heat will be conducted through the glass in 1 day ?

Calculate the amount of heat required to convert 10g of ice at - 10^@C to water at 5^@C (latent heat of fusion of ice = 80 cal g^(-1) , specific heat of ice = 0.5).

How much heat is required to convert 1 g of ice at 0^@C to water at 100^@C ?

A steam engine intakes steam at 200^@C and after doing work exhausts it directly in air at 100^@C . Calculate the percentage of heat utilised for doing work.

Calculate temperature at perfectly black body radiates energy at the rate 5.67 xx 10^4 W/m^2 .

Calculate the amount of heat required to convert 10 gm of ice at 0^@C to steam at 100^@C .