Home
Class 11
PHYSICS
A piece of ice (heat capacity = 2100 J k...

A piece of ice (heat capacity `= 2100 J kg^(-1)"^(@)C^(-1)` and latent heat `=3.36 xx 10^(5) J kg^(-1))` of mass m grams is at `-5^(@)C` at atmospheric pressure. It is given `420 J` of heat so that the ice strats melting. Finally when the ice-water mixture is in equilibrium, it is found that `1gm` of ice has melted. Assuming there is no other heat exchange in the process, the value of m is:

Text Solution

Verified by Experts

The correct Answer is:
8
Promotional Banner

Similar Questions

Explore conceptually related problems

A piece of ice (heat capacity =2100 J kg^(-1) .^(@)C^(-1) and latent heat =3.36xx10^(5) J kg^(-1) ) of mass m grams is at -5 .^(@)C at atmospheric pressure. It is given 420 J of heat so that the ice starts melting. Finally when the ice . Water mixture is in equilibrium, it is found that 1 gm of ice has melted. Assuming there is no other heat exchange in the process, the value of m in gram is

A piece of ice (heat capacity= 2100Jkg^-1^@C^-1 and latent heat =3.36xx10^5Jkg^-1 ) of mass m grams is at -5^@C at atmospheric pressure. It is given 420J of heat so that the ice starts melting. Finally when the ice-water mixture is in equilibrium, it is found that 1gm of ice has melted. Assuming there is no other heat exchange in the process, the value of m is

The specific heat of water 4200 "J kg"^(-1)K^(-1) and latent heat of ice =3.4xx10^5 "j kg"^(-1) . 100 grams of ice at 0^@C is placed in 200 g of water at 25^@C . The amount of ice that will melt as the temperature of water reaches 0^@C is close to (in grams)

How many grams of ice at 0^@C can be melted by the addition of 500 J of heat ? (The molar heat of fusion for ice is 6.02 Kamal^(-1))

Latent heat of ice 80 cal/gm . A man melts 60 g of ice by chewing in 1 minute . His power is

Equilibrium mixture of ice and water is held at constant pressure. On heating some ice melts. For the system

When 1 kg of ice at 0^(@)C melts to water at 0^(@)C , the resulting change in its entropy, taking latent heat of ice to be 80 cal//g is

When 1 g of ice at 0^(@)C melts to form 1 g of water at 0^(@)C then, is the latent heat absorbed by the ice or given out by it?

Calculate the power of an electric heater required to melt 1 kg of ice at 0^@ C in 30 s if the efficiency of heater is 40%. Take specific latent heat of ice = 336 J g^(-1)

In a container of negligible heat capacity, 200 gm ice at 0^(@)C and 100gm steam at 100^(@)C are added to 200 gm of water that has temperature 55^(@)C . Assume no heat is lost to the surroundings and the pressure in the container is constant 1.0 atm . (Latent heat of fusion of ice =80 cal//gm , Latent heat of vaporization of water = 540 cal//gm , Specific heat capacity of ice = 0.5 cal//gm-K , Specific heat capacity of water =1 cal//gm-K) What is the final temperature of the system ?