Find δe for the change in state of 1.0 molh2o(l) at 79 ∘c to h2o(g) at 116 ∘c. the heat capacity of h2o(l) = 75.3 j/molk, heat capacity of h2o(g) = 25.0 j/molk, and the heat of vaporization of h2o is 40.7×103j/mol at 100 ∘c.

One of the hopes for solving the world's energy problem is to make use of the fusion reaction 21h +31h --> 42he + 10n + energy how much energy is released when 1 mol of deuterium is fused with 1 mol of tritium according to the above reaction? the masses of the atoms and the neutrons are as follows: 21h = 2.0140 amu 31h = 3.01605 amu 42he = 4.002603 amu 10n = 1.008665 amu. the speed of light is 2.9979 x 108 m/s.

Analyze the reaction to determine whether the reaction is exothermic or endothermic. explain your reasoning.

What volume does 1.70 ×10–3 mol of chlorine gas occupy if its temperature is 20.2 °c and its pressure is 795 mm hg?