Question 288: Thermodynamics & KTG

Question

A copper block of mass 5.0 kg is heated to a temperature of 500$$^\circ$$C and is placed on a large ice block. What is the maximum amount of ice that can melt? [Specific heat of copper : 0.39 J g
$$-$$1
$$^\circ$$C
$$-$$1
and latent heat of fusion of water : 335 J g
$$-$$1
]

Accepted Answer

$$mL = \Delta Q = ms\Delta T$$
$$ \Rightarrow m = {{5 	imes 0.39 	imes {{10}^3} 	imes 500} \over {335}}$$
$$ = 2.9$$ kg

Answer

1.5 kg

Answer

5.8 kg

Answer

2.9 kg

Answer

3.8 kg

Thermodynamics & KTG

A copper block of mass 5.0 kg is heated to a temperature of 500$^\circC and is placed on a large ice block. What is the maximum amount of ice that can melt? [Specific heat of copper : 0.39 J g -1 ^\circC -1 and latent heat of fusion of water : 335 J g -$1 ]

Choose the correct answer: