Numerical Problems | Chapte 8 Thermal Properties of Matter | Physics 9th | Balochistan Text Book скачать в хорошем качестве

Numerical Problems | Chapte 8 Thermal Properties of Matter | Physics 9th | Balochistan Text Book

Make the following conversion. (a) 0℃ to Kelvin (b) 273℃ to Kelvin (c) 0K to Celsius (d) 273K to Celsius How much heat is needed to heat 8kg of water from room temperature of 15℃ to 85℃. The specific heat of water is 4200J〖kg〗^(-1) K^(-1). A 0.400kg block of iron is heated from 22℃ to 52℃. How much heat is absorbed by iron (c=450J〖kg〗^(-1) C^(-1)). The latent heat of fusion of ice is 33600J〖kg〗^(-1). How much heat energy is needed to melt 0.65kg of ice. How much heat is needed to change 50.0g water at 100℃ to steam at 100℃. The latent heat of vaporization for water is 2.26×〖10〗^6 J〖kg〗^(-1). If 50×〖10〗^2 J is added to ice at 0℃, how much ice will be melted? Given that H_f=3.36×〖10〗^5 J〖kg〗^(-1). Heat is applied to 100g of ice at 0℃ until the ice melts and temperature of resulting water rises to 20℃. How much heat is absorbed? A metal bar is 2.6m long at 21℃. The bar is heated to a temperature of 93℃ and the change in length is measured as 3.4mm. What is the coefficient of linear expansion? A piece of steel (α=11×〖10〗^(-6) C^(-1)) is 11.5m long at 22℃. It is heated 1221℃ close to its melting temperature. What is its new length?