A copper block of 2 kg is heated in a furnace from 30°C to 430°C and

1.	A copper block of 2 kg is heated in a furnace from 30°C to 430°C and then placed on thick ice block. Calculate specific heat of copper if ice melted is 1Kg
Answer» Answer: PHYSICS A copper block of mass 2.5 kg is heated in a FURNACE to a temperature of 500 o C and then placed on a large ICE block. What is the maximum amount of ice that can MELT ? (Specific HEAT of copper=0.39Jg −1 K −1 ; heat of fusion of water =335Jg −1 ) November 22, 2019avatar Mitesh Ramekar SHARE VIDEO EXPLANATION ANSWER Mass of the copper block, m=2.5kg=2500g Rise in the temperature of the copper block, =500 o C Specific heat of copper, C=0.39J/g o C Heat of fusion of water, L=335J/g The maximum heat the copper block can lose, Q=mC =2500×0.39×500 =487500J Let m 1 g be the amount of ice that melts when the copper block is placed on the ice block. The heat gained by the melted ice,Q=m 1 L m 1 =Q/L=487500/335=1455.22g Hence, the maximum amount of ice that can melt is 1.45 kg

A copper block of 2 kg is heated in a furnace from 30°C to 430°C and then placed on thick ice block. Calculate specific heat of copper if ice melted is 1Kg

Answer»

Answer:

PHYSICS

A copper block of mass 2.5 kg is heated in a FURNACE to a temperature of 500

C and then placed on a large ICE block. What is the maximum amount of ice that can MELT ? (Specific HEAT of copper=0.39Jg

−1

; heat of fusion of water =335Jg

−1

)

November 22, 2019avatar

Mitesh Ramekar

VIDEO EXPLANATION

ANSWER

Mass of the copper block, m=2.5kg=2500g

Rise in the temperature of the copper block, =500

Specific heat of copper, C=0.39J/g

Heat of fusion of water, L=335J/g

The maximum heat the copper block can lose,

Q=mC

=2500×0.39×500

=487500J

Let m

g be the amount of ice that melts when the copper block is placed on the ice block.

The heat gained by the melted ice,Q=m

=Q/L=487500/335=1455.22g

Hence, the maximum amount of ice that can melt is 1.45 kg

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