To rise temperature of 30 gm water from `20^@C` to `50^@C` how much heat is required?

Mass of an object is 200 gm and specific heat 0.09 calorie/gm C . To rise temperature of that object from 20^@C to 90^@C how much heat is required?

If 0.5 kg of coal on burning raises the temperature of 50 L of water from 20^(@)C to 90^(@)C, then the heat of combustion of coal is nxx10^(6)" cal . Kg"^(-1) . Find the value of n.

To increase the temperature of 31.75 mm of Cu from 23^@C to 28^@C ,50 calorie of heat is required find heat capacity of copper

To increase the temperature of 31.75 mm of Cu from 23^@C to 28^@C ,50 calorie of heat is required find molar heat capacity[Cu=63.5]

How much heat is required to raise the temperature of 90 g of water from 30^(@)C to 100^(@)C ? [Molar heat capacity of water at constant pressure =75.3J*mol^(-1)*K^(-1) ]

How much heat to be supplied to raise the temperature of 100 g water from 20^(@)C to the normal boilling point of water ?

Q units of heat is required to raise the temperature of 1 gm. Water from 0^(@)C to t^(@)C, where Q = t + 10^(-5) xx 2t^(2)+ 10^(-7) xx 3t^(3) If the specific heat is the rate of increase of heat per unit degree rise of temperature, find the specifi heat of water at 50^(@) C.

70 cal of heat is required to increase the temperature of 2 mol of an ideal diatomic gas at constant pressure from 40^(@)C to 45^(@)C . How much heat will be required to increase the temperature of that gas by the same amount at constant volume? R = 2 cal cdot mol^(-1) cdot K^(-1) .