Heat capacity of water is `18 cal-"degree"^(-1)-mol^(-1)`. The quantity of heat needed to rise temperature of 18 g water by `0.2^(@)C` is x cal. Then amount of `CH_(4(g))` to be burnt to produce X cal heat is
`(CH_(4)+2O_(2) rarr CO_(2)+2H_(2)O, Delta H = -200 K.Cal)`

The amount of heat required to raise the temperature of 75 kg of ice at 0°C to water at 10°C is (latent heat of fusion of ice is 80 cal/g, specific heat of water is 1 cal/g °C)

The amount of heat required to raise the temperature of 75 kg of ice at 0^oC to water at 10^oC is (latent heat of fusion of ice is 80 cal/g, specific heat of water is 1 cal/ g^oC )

The combustion of 10g coke raised to temperature of 1.0kg water from 10^(@)C to 50^(@)C . Calculate the fuel value of cock. (Sp. heat of H_(2)O=1 cal//g) .

Specific heat capacity of a substance is x cal *g^(-1)*""^(@)C^(-1) . Specific heat capacity of 100g of that substance will be _____.

10 gram of water at 45^(@)C is added to 5 gram of ice at -30^(@)C . Find the final temperature of the mixture. Specific heat of ice is 0.55 cal g^(-1)""^(@)C^(-1) and that of water is 1.0 cal g^(-1)""^(@)C^(-1) latent heat of fusion of ice is 80 cal g^(-1) ? (ii) To rise the temperature of 100 gram of water from 24^(@) to 90^(@)C by steam at 100^(@)C . Calculate the amount of steam required. Specific heat of water is 1.0 cal g^(-1)""^(@)C^(-1) . Latent heat of steam is 540 Cal kg^(-1) .

If heat of neutralisation is -13.7 k cal and H_f^(@)H_2O =-68 k cal , then enthalpy of OH^- would be:

The heat capacity of a vessel is 300 cal .^(@)C^(-1) and the heat capacity of water contained in the vessel is also 300 cal .^(@)C^(-1) . How much heat (in joules) is required to raise the temperature of water in the vessel by 126^(@)F ?