Question

A copper block of mass 2.5 kg is heated in a furnace to a temperature of 500°C and then placed on large ice block. The maximum amount of ice that can melt is ______.

(Specific heat of copper = 0.39 Jg^-1 c^-1, latent heat of 0 fusion of water = 335 Jg^-1)

Options

• 1.2 kg

• 1.455 kg

• 1 kg

• 2.5 kg

Answer 1

A copper block of mass 2.5 kg is heated in a furnace to a temperature of 500°C and then placed on large ice block. The maximum amount of ice that can melt is 1.455 kg.

Explanation:

m_IL_f = m_cs_c ∆T_c

⇒ m_I = `("m"_"c""S"_"C"Delta"T"_"C")/"L"_"f"`

= `(2.5xx0.39xx(500-0))/335`

= 1.455 Kg