Question

One practical way is suggested to measure the heat of melting for ice. Place a block of ice of mass mi initially at temperature T_ice,i=0∘C into water of mass m_w and initial temperature T_w. Let the ice melt, and the ice water and the water come to thermal equilibrium with final temperature Tf. Assuming no energy loss to the environment find the heat of melting. Express your answer in terms of specific heat of water c_w, m_w, T_w, T_f, and m_i.

One practical way is suggested to measure the heat of vaporization. Pour a cup of water of known mass m_s into a steam generator. Use the thermal energy released by the steam as it condenses at Tc=100 ∘C to heat water of mass m_w and initial temperature T_w. Let the steam condenses, and the condensed water and the water come to thermal equilibrium with final temperature T_f. Assuming no energy loss to the environment find the heat of vaporization.

Express your answer in terms of specific heat of water c_w, m_w, m_s, T_w, T_c, and T_f.

Answer 1