Home
Class 12
PHYSICS
The water equivalent of 20 g of aluminiu...

The water equivalent of 20 g of aluminium (specific heat `0.2" cal"//g-""^(@)C`), is :-

A

40 g

B

4 g

C

8 g

D

160 g

Text Solution

AI Generated Solution

Promotional Banner

Similar Questions

Explore conceptually related problems

The water equivalent of 50g of aluminium (Specific heat is 0.2 cal g^-1 °C^-1 )

The thermal capacity of 40 g of aluminium (specific heat =0.2 cal//gm^(@)C )

The water equivatent of a 400 g copper calorimeter (specific heat =0.1 "cal"//g^(@)C )

The thermal capacity of 100 g of aluminum (specific heat = 0.2 cal//g^(@)C ) is

5g of water at 30^@C and 5 g of ice at -29^@C are mixed together in a calorimeter. Find the final temperature of mixture. Water equivalent of calorimeter is negligible, specific heat of ice = 0.5 cal//g-^@C and latent heat of ice =80 cal//g .

100 g of ice (latent heat 80 cal/g, at 0^(@)C ) is mixed with 100 g of water (specific heat 1" cal"//g-""^(@)C ) at 80^(@)C . The final temperature of the mixture will be :-

A refrigerator converts 100 g of water at 25^(@)C into ice at -10^(@)C in one hour and 50 minutes. The quantity of heat removed per minute is (specific heat of ice = 0.5 "cal"//g^(@)C , latent heat of fusion = 80 "cal"//g )

The water equivalent of a copper calorimeter is 4.5g. If the specific heat of copper is 0.09 cal g^(-1).^(@)C^(-1) . Then

A 10 g ice cube is dropped into 45 g of water kept in a glass. If the water was initially at a temperature of 28^(@)C and the temperature of ice -15^(@)C , find the final temperature (in ^(@)C ) of water. (Specific heat of ice =0.5" "cal//g-""^(@)C" and "L=80" "cal//g)

A metal ball of specific gravity 4.5 and specific heat 0.1 cal//gm-"^(@)C is placed on a large slab of ice at 0^(@)C . Half of the ball sinks in the ice. The initial temperature of the ball is:- (Latent heat capacity of ice =80 cal//g , specific gravity of ice =0.9)