[" The number of photons of light having wavelength "300nm" required to raise the temperature of "5.0g" of "],[H_(2)O" by one degree centigrade is "31.5times10^(2x)" .Then what is the value of "x" ? "],[" [given that specific heat of water is "4.18J/K/g]]

Calculate the amount of heat required to raise the temperature of 5 g of iron from 25^(@)C "to" 75^(@)C . The specific heat capacity of iron is 0.45 J/g.

Calculate the amount of heat required to raise the temperature of 5 g of iron from 25^(@)C "to" 75^(@)C . The specific heat capacity of iron is 0.45 J/g.

Calculate the amount of heat required to raise the temperature of 5 g of iron from 25^(@)C "to" 75^(@)C . The specific heat capacity of iron is 0.45 J/g. C

What is the heat in joules required to raise the temperature of 25 grams of 0^@C to 100^@C ? What is the heat in Calories? (Specific heat of water =4.18 J//g^@C )

X g of ice at 0 .^(@)C is added to 340 g of water at 20^(@)C. The final tempeature of the resultant mixture is 5 .^(@)C. The value of X (in g) is closest to [Heat of fusion of ice = 333 J//g, Specific heat of water = 4.184 J//g. K ]

The heat produced on complete combustion of 20 g of a fuel could raise the temperature of 1.5 kg of water form 25^(@)C to 75^(@)C . Calculate the calorific value of the fuel if the specific heat capacity of water is 4.2 J g^(-1).^(@)C^(-1) . Assume that the heat absorbed by the container is negligible.

A copper calorimeter of mass 190 g contains 300 g of water at 0^(@)C and 50 g of ice at 0^(@)C .Find the amount of steam at 100^(@)C required to raise the temperature of this mixture by 10^(@)C . Given that the specific heat of copperis 420J//kg^(@)C , latent heat of vaporization of water is 2.25xx10^(5)xxJ//kg and latent heat of fusion of ice is 3.36xx10^(5)J//kg .

The molar heat capacity of water is 75 JK^(-1)" mole"^(-1) . What is the amount of heat required to raise the temperature of 100 g of water from 300 K to 302.4 K?